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What does the $prod$ symbol mean?
The Next CEO of Stack OverflowWhy is the greek letter Pi used for Pi (product) notation?What does the symbol $lll$ mean?What does the notation $fcolon Ato B$ mean?What is a common symbol for angles and what are semantic differences?How and why did Weierstrass $wp$ get its special symbol?What does the symbol <<< mean?What does the symbol $in$ mean?What does the symbol |_ mean?Notation about normWhat does the symbol $leqq$ mean?What does “$prod$” mean?
$begingroup$
This is one of those cases where I would google if I could, but I don't know what to search for.
I've come across this symbol a few times, but I have no clue what it means or what it is called.
$$prod$$
Furthermore, what are the $coprod$ and $amalg$ symbols for?
I could not list all the places I found it, but the one that sparked it was a discussion on solving the Diophantine equation, $frac{1}{x} + frac{1}{y} = frac{1}{n}$.
notation
asked Dec 28 '13 at 5:29
NictraSaviosNictraSavios
3362414
$endgroup$
|
show 4 more comments
$begingroup$
This is one of those cases where I would google if I could, but I don't know what to search for.
I've come across this symbol a few times, but I have no clue what it means or what it is called.
$$prod$$
Furthermore, what are the $coprod$ and $amalg$ symbols for?
I could not list all the places I found it, but the one that sparked it was a discussion on solving the Diophantine equation, $frac{1}{x} + frac{1}{y} = frac{1}{n}$.
notation
asked Dec 28 '13 at 5:29
NictraSaviosNictraSavios
3362414
$endgroup$
4
$begingroup$
Can you give the context in which you've found this symbol? $Pi$ is frequently used for products, and $coprod$ is frequently used for disjoint unions or for coproducts.
$endgroup$
– user61527
Dec 28 '13 at 5:30
$begingroup$
Edited and added.
$endgroup$
– NictraSavios
Dec 28 '13 at 5:32
2
$begingroup$
Excellent Question. Please note, in future, incase you ever need to know what a certain symbol means, refer to Wikipedia's list of Math symbols. I've asked the MSE community several times to make a list of their own but nothing's been done yet. But until it is, that little old wikipedia page is the best resource.
$endgroup$
– Nick
Dec 28 '13 at 9:43
$begingroup$
I did go there, In fact I looked through quite closely. I didn't see this symbol there because it looks more like a staple or upside down "U" on that page. See ->Π, not even close to $prod$. (Edit: Okay, in the Math.SE font it does. Go look and see!) (Edit_2: Ahh, I was only looking at the HTML style symbols. Didn't even notice the TeX style ones.)
$endgroup$
– NictraSavios
Dec 28 '13 at 10:01
$begingroup$
@Nictra: XD Yes, there are variants to the font. Mathematicians have never agreed on which is the standard font. But incase you ever have trouble searching for a notation in the list, go to the page and pressCtrl+Fand in the search bar that pops up on the top right corner (if you have Chrome), paste the symbol you want to find. The list doesn't have all the symbols but I'm sure someone (someone from MSE) will fix it.
$endgroup$
– Nick
Dec 28 '13 at 10:05
|
show 4 more comments
$begingroup$
This is one of those cases where I would google if I could, but I don't know what to search for.
I've come across this symbol a few times, but I have no clue what it means or what it is called.
$$prod$$
Furthermore, what are the $coprod$ and $amalg$ symbols for?
I could not list all the places I found it, but the one that sparked it was a discussion on solving the Diophantine equation, $frac{1}{x} + frac{1}{y} = frac{1}{n}$.
notation
asked Dec 28 '13 at 5:29
NictraSaviosNictraSavios
3362414
$endgroup$
This is one of those cases where I would google if I could, but I don't know what to search for.
I've come across this symbol a few times, but I have no clue what it means or what it is called.
$$prod$$
Furthermore, what are the $coprod$ and $amalg$ symbols for?
I could not list all the places I found it, but the one that sparked it was a discussion on solving the Diophantine equation, $frac{1}{x} + frac{1}{y} = frac{1}{n}$.
notation
notation
asked Dec 28 '13 at 5:29
NictraSaviosNictraSavios
3362414
asked Dec 28 '13 at 5:29
NictraSaviosNictraSavios
3362414
asked Dec 28 '13 at 5:29
NictraSaviosNictraSavios
3362414
asked Dec 28 '13 at 5:29
NictraSaviosNictraSavios
3362414
asked Dec 28 '13 at 5:29
NictraSaviosNictraSavios
3362414
3362414
4
$begingroup$
Can you give the context in which you've found this symbol? $Pi$ is frequently used for products, and $coprod$ is frequently used for disjoint unions or for coproducts.
$endgroup$
– user61527
Dec 28 '13 at 5:30
$begingroup$
Edited and added.
$endgroup$
– NictraSavios
Dec 28 '13 at 5:32
2
$begingroup$
Excellent Question. Please note, in future, incase you ever need to know what a certain symbol means, refer to Wikipedia's list of Math symbols. I've asked the MSE community several times to make a list of their own but nothing's been done yet. But until it is, that little old wikipedia page is the best resource.
$endgroup$
– Nick
Dec 28 '13 at 9:43
$begingroup$
I did go there, In fact I looked through quite closely. I didn't see this symbol there because it looks more like a staple or upside down "U" on that page. See ->Π, not even close to $prod$. (Edit: Okay, in the Math.SE font it does. Go look and see!) (Edit_2: Ahh, I was only looking at the HTML style symbols. Didn't even notice the TeX style ones.)
$endgroup$
– NictraSavios
Dec 28 '13 at 10:01
$begingroup$
@Nictra: XD Yes, there are variants to the font. Mathematicians have never agreed on which is the standard font. But incase you ever have trouble searching for a notation in the list, go to the page and pressCtrl+Fand in the search bar that pops up on the top right corner (if you have Chrome), paste the symbol you want to find. The list doesn't have all the symbols but I'm sure someone (someone from MSE) will fix it.
$endgroup$
– Nick
Dec 28 '13 at 10:05
|
show 4 more comments
4
$begingroup$
Can you give the context in which you've found this symbol? $Pi$ is frequently used for products, and $coprod$ is frequently used for disjoint unions or for coproducts.
$endgroup$
– user61527
Dec 28 '13 at 5:30
$begingroup$
Edited and added.
$endgroup$
– NictraSavios
Dec 28 '13 at 5:32
2
$begingroup$
Excellent Question. Please note, in future, incase you ever need to know what a certain symbol means, refer to Wikipedia's list of Math symbols. I've asked the MSE community several times to make a list of their own but nothing's been done yet. But until it is, that little old wikipedia page is the best resource.
$endgroup$
– Nick
Dec 28 '13 at 9:43
$begingroup$
I did go there, In fact I looked through quite closely. I didn't see this symbol there because it looks more like a staple or upside down "U" on that page. See ->Π, not even close to $prod$. (Edit: Okay, in the Math.SE font it does. Go look and see!) (Edit_2: Ahh, I was only looking at the HTML style symbols. Didn't even notice the TeX style ones.)
$endgroup$
– NictraSavios
Dec 28 '13 at 10:01
$begingroup$
@Nictra: XD Yes, there are variants to the font. Mathematicians have never agreed on which is the standard font. But incase you ever have trouble searching for a notation in the list, go to the page and pressCtrl+Fand in the search bar that pops up on the top right corner (if you have Chrome), paste the symbol you want to find. The list doesn't have all the symbols but I'm sure someone (someone from MSE) will fix it.
$endgroup$
– Nick
Dec 28 '13 at 10:05
4
4
$begingroup$
Can you give the context in which you've found this symbol? $Pi$ is frequently used for products, and $coprod$ is frequently used for disjoint unions or for coproducts.
$endgroup$
– user61527
Dec 28 '13 at 5:30
$begingroup$
Can you give the context in which you've found this symbol? $Pi$ is frequently used for products, and $coprod$ is frequently used for disjoint unions or for coproducts.
$endgroup$
– user61527
Dec 28 '13 at 5:30
$begingroup$
Edited and added.
$endgroup$
– NictraSavios
Dec 28 '13 at 5:32
$begingroup$
Edited and added.
$endgroup$
– NictraSavios
Dec 28 '13 at 5:32
2
2
$begingroup$
Excellent Question. Please note, in future, incase you ever need to know what a certain symbol means, refer to Wikipedia's list of Math symbols. I've asked the MSE community several times to make a list of their own but nothing's been done yet. But until it is, that little old wikipedia page is the best resource.
$endgroup$
– Nick
Dec 28 '13 at 9:43
$begingroup$
Excellent Question. Please note, in future, incase you ever need to know what a certain symbol means, refer to Wikipedia's list of Math symbols. I've asked the MSE community several times to make a list of their own but nothing's been done yet. But until it is, that little old wikipedia page is the best resource.
$endgroup$
– Nick
Dec 28 '13 at 9:43
$begingroup$
I did go there, In fact I looked through quite closely. I didn't see this symbol there because it looks more like a staple or upside down "U" on that page. See ->Π, not even close to $prod$. (Edit: Okay, in the Math.SE font it does. Go look and see!) (Edit_2: Ahh, I was only looking at the HTML style symbols. Didn't even notice the TeX style ones.)
$endgroup$
– NictraSavios
Dec 28 '13 at 10:01
$begingroup$
I did go there, In fact I looked through quite closely. I didn't see this symbol there because it looks more like a staple or upside down "U" on that page. See ->Π, not even close to $prod$. (Edit: Okay, in the Math.SE font it does. Go look and see!) (Edit_2: Ahh, I was only looking at the HTML style symbols. Didn't even notice the TeX style ones.)
$endgroup$
– NictraSavios
Dec 28 '13 at 10:01
$begingroup$
@Nictra: XD Yes, there are variants to the font. Mathematicians have never agreed on which is the standard font. But incase you ever have trouble searching for a notation in the list, go to the page and press
Ctrl+F and in the search bar that pops up on the top right corner (if you have Chrome), paste the symbol you want to find. The list doesn't have all the symbols but I'm sure someone (someone from MSE) will fix it.$endgroup$
– Nick
Dec 28 '13 at 10:05
$begingroup$
@Nictra: XD Yes, there are variants to the font. Mathematicians have never agreed on which is the standard font. But incase you ever have trouble searching for a notation in the list, go to the page and press
Ctrl+F and in the search bar that pops up on the top right corner (if you have Chrome), paste the symbol you want to find. The list doesn't have all the symbols but I'm sure someone (someone from MSE) will fix it.$endgroup$
– Nick
Dec 28 '13 at 10:05
|
show 4 more comments
4 Answers
4
active
oldest
votes
$begingroup$
The symbol $Pi$ is the pi-product. It is like the summation symbol $sum$ but rather than addition its operation is multiplication. For example,
$$
prod_{i=1}^5i=1cdot2cdot3cdot4cdot5=120
$$
The other symbol is the coproduct.
answered Dec 28 '13 at 5:33
mathematics2x2lifemathematics2x2life
8,08621739
$endgroup$
$begingroup$
Is there a general equation for it interms of factorials. I'm sure the OP would love to see that.
$endgroup$
– Nick
Dec 28 '13 at 9:34
3
$begingroup$
I can figure that part out for myself. $prodlimits_{i=1}^{n} i = n! $
$endgroup$
– NictraSavios
Dec 28 '13 at 10:05
2
$begingroup$
@Nick My example was a demonstration of $Pi$. Indeed, there is a formula for $n!$ in terms of $Pi$ but not the other way around, as you suggest.
$endgroup$
– mathematics2x2life
Dec 28 '13 at 19:27
add a comment |
$begingroup$
For example, $$prod _{i=0}^{3}a_i=a_0cdot a_1cdot a_2cdot a_3$$
This is a symbol for product similarly as $sum$ for sum.
answered Dec 28 '13 at 5:34
mathlovemathlove
91.9k882218
$endgroup$
$begingroup$
Your use of the $times$ symbol begs the question, if the products are vectors is the pi-product scalar or vector? (cross or dot product) If it is not vector, then the $cdot$ symbol would be more appropriate.
$endgroup$
– NictraSavios
Dec 28 '13 at 10:14
$begingroup$
I think you are right. Thanks.
$endgroup$
– mathlove
Dec 28 '13 at 10:20
add a comment |
$begingroup$
The uppercase Pi $prod$ symbol stands for the $product$ operator throughout mathematics, just as the uppercase Sigma $sum$ symbol would describe the sum operator. Think of the following analogy alliteration:
Pi is to a Product ... as Sigma is to a Sum.
answered Mar 16 at 15:12
Marvin CohenMarvin Cohen
174117
$endgroup$
add a comment |
$begingroup$
$$prod_{i=1}^n=1cdot2cdot3...cdot (n-1)cdot n$$
edited Dec 9 '17 at 16:06
Parcly Taxel
44.7k1376109
answered Dec 9 '17 at 15:59
fedfed
1
$endgroup$
$begingroup$
Welcome to stackexchange. It's a good thing that you want to help people by answering questions - but why post a duplicate answer to a very old question that already has a good accepted answer? Pay attention to the new, unanswered questions and contribute when you can.
$endgroup$
– Ethan Bolker
Dec 9 '17 at 16:04
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
The symbol $Pi$ is the pi-product. It is like the summation symbol $sum$ but rather than addition its operation is multiplication. For example,
$$
prod_{i=1}^5i=1cdot2cdot3cdot4cdot5=120
$$
The other symbol is the coproduct.
answered Dec 28 '13 at 5:33
mathematics2x2lifemathematics2x2life
8,08621739
$endgroup$
$begingroup$
Is there a general equation for it interms of factorials. I'm sure the OP would love to see that.
$endgroup$
– Nick
Dec 28 '13 at 9:34
3
$begingroup$
I can figure that part out for myself. $prodlimits_{i=1}^{n} i = n! $
$endgroup$
– NictraSavios
Dec 28 '13 at 10:05
2
$begingroup$
@Nick My example was a demonstration of $Pi$. Indeed, there is a formula for $n!$ in terms of $Pi$ but not the other way around, as you suggest.
$endgroup$
– mathematics2x2life
Dec 28 '13 at 19:27
add a comment |
$begingroup$
The symbol $Pi$ is the pi-product. It is like the summation symbol $sum$ but rather than addition its operation is multiplication. For example,
$$
prod_{i=1}^5i=1cdot2cdot3cdot4cdot5=120
$$
The other symbol is the coproduct.
answered Dec 28 '13 at 5:33
mathematics2x2lifemathematics2x2life
8,08621739
$endgroup$
$begingroup$
Is there a general equation for it interms of factorials. I'm sure the OP would love to see that.
$endgroup$
– Nick
Dec 28 '13 at 9:34
3
$begingroup$
I can figure that part out for myself. $prodlimits_{i=1}^{n} i = n! $
$endgroup$
– NictraSavios
Dec 28 '13 at 10:05
2
$begingroup$
@Nick My example was a demonstration of $Pi$. Indeed, there is a formula for $n!$ in terms of $Pi$ but not the other way around, as you suggest.
$endgroup$
– mathematics2x2life
Dec 28 '13 at 19:27
add a comment |
$begingroup$
The symbol $Pi$ is the pi-product. It is like the summation symbol $sum$ but rather than addition its operation is multiplication. For example,
$$
prod_{i=1}^5i=1cdot2cdot3cdot4cdot5=120
$$
The other symbol is the coproduct.
answered Dec 28 '13 at 5:33
mathematics2x2lifemathematics2x2life
8,08621739
$endgroup$
The symbol $Pi$ is the pi-product. It is like the summation symbol $sum$ but rather than addition its operation is multiplication. For example,
$$
prod_{i=1}^5i=1cdot2cdot3cdot4cdot5=120
$$
The other symbol is the coproduct.
answered Dec 28 '13 at 5:33
mathematics2x2lifemathematics2x2life
8,08621739
answered Dec 28 '13 at 5:33
mathematics2x2lifemathematics2x2life
8,08621739
answered Dec 28 '13 at 5:33
mathematics2x2lifemathematics2x2life
8,08621739
answered Dec 28 '13 at 5:33
mathematics2x2lifemathematics2x2life
8,08621739
8,08621739
$begingroup$
Is there a general equation for it interms of factorials. I'm sure the OP would love to see that.
$endgroup$
– Nick
Dec 28 '13 at 9:34
3
$begingroup$
I can figure that part out for myself. $prodlimits_{i=1}^{n} i = n! $
$endgroup$
– NictraSavios
Dec 28 '13 at 10:05
2
$begingroup$
@Nick My example was a demonstration of $Pi$. Indeed, there is a formula for $n!$ in terms of $Pi$ but not the other way around, as you suggest.
$endgroup$
– mathematics2x2life
Dec 28 '13 at 19:27
add a comment |
$begingroup$
Is there a general equation for it interms of factorials. I'm sure the OP would love to see that.
$endgroup$
– Nick
Dec 28 '13 at 9:34
3
$begingroup$
I can figure that part out for myself. $prodlimits_{i=1}^{n} i = n! $
$endgroup$
– NictraSavios
Dec 28 '13 at 10:05
2
$begingroup$
@Nick My example was a demonstration of $Pi$. Indeed, there is a formula for $n!$ in terms of $Pi$ but not the other way around, as you suggest.
$endgroup$
– mathematics2x2life
Dec 28 '13 at 19:27
$begingroup$
Is there a general equation for it interms of factorials. I'm sure the OP would love to see that.
$endgroup$
– Nick
Dec 28 '13 at 9:34
$begingroup$
Is there a general equation for it interms of factorials. I'm sure the OP would love to see that.
$endgroup$
– Nick
Dec 28 '13 at 9:34
3
3
$begingroup$
I can figure that part out for myself. $prodlimits_{i=1}^{n} i = n! $
$endgroup$
– NictraSavios
Dec 28 '13 at 10:05
$begingroup$
I can figure that part out for myself. $prodlimits_{i=1}^{n} i = n! $
$endgroup$
– NictraSavios
Dec 28 '13 at 10:05
2
2
$begingroup$
@Nick My example was a demonstration of $Pi$. Indeed, there is a formula for $n!$ in terms of $Pi$ but not the other way around, as you suggest.
$endgroup$
– mathematics2x2life
Dec 28 '13 at 19:27
$begingroup$
@Nick My example was a demonstration of $Pi$. Indeed, there is a formula for $n!$ in terms of $Pi$ but not the other way around, as you suggest.
$endgroup$
– mathematics2x2life
Dec 28 '13 at 19:27
add a comment |
$begingroup$
For example, $$prod _{i=0}^{3}a_i=a_0cdot a_1cdot a_2cdot a_3$$
This is a symbol for product similarly as $sum$ for sum.
answered Dec 28 '13 at 5:34
mathlovemathlove
91.9k882218
$endgroup$
$begingroup$
Your use of the $times$ symbol begs the question, if the products are vectors is the pi-product scalar or vector? (cross or dot product) If it is not vector, then the $cdot$ symbol would be more appropriate.
$endgroup$
– NictraSavios
Dec 28 '13 at 10:14
$begingroup$
I think you are right. Thanks.
$endgroup$
– mathlove
Dec 28 '13 at 10:20
add a comment |
$begingroup$
For example, $$prod _{i=0}^{3}a_i=a_0cdot a_1cdot a_2cdot a_3$$
This is a symbol for product similarly as $sum$ for sum.
answered Dec 28 '13 at 5:34
mathlovemathlove
91.9k882218
$endgroup$
$begingroup$
Your use of the $times$ symbol begs the question, if the products are vectors is the pi-product scalar or vector? (cross or dot product) If it is not vector, then the $cdot$ symbol would be more appropriate.
$endgroup$
– NictraSavios
Dec 28 '13 at 10:14
$begingroup$
I think you are right. Thanks.
$endgroup$
– mathlove
Dec 28 '13 at 10:20
add a comment |
$begingroup$
For example, $$prod _{i=0}^{3}a_i=a_0cdot a_1cdot a_2cdot a_3$$
This is a symbol for product similarly as $sum$ for sum.
answered Dec 28 '13 at 5:34
mathlovemathlove
91.9k882218
$endgroup$
For example, $$prod _{i=0}^{3}a_i=a_0cdot a_1cdot a_2cdot a_3$$
This is a symbol for product similarly as $sum$ for sum.
answered Dec 28 '13 at 5:34
mathlovemathlove
91.9k882218
edited Dec 28 '13 at 10:20
answered Dec 28 '13 at 5:34
mathlovemathlove
91.9k882218
answered Dec 28 '13 at 5:34
mathlovemathlove
91.9k882218
answered Dec 28 '13 at 5:34
mathlovemathlove
91.9k882218
91.9k882218
$begingroup$
Your use of the $times$ symbol begs the question, if the products are vectors is the pi-product scalar or vector? (cross or dot product) If it is not vector, then the $cdot$ symbol would be more appropriate.
$endgroup$
– NictraSavios
Dec 28 '13 at 10:14
$begingroup$
I think you are right. Thanks.
$endgroup$
– mathlove
Dec 28 '13 at 10:20
add a comment |
$begingroup$
Your use of the $times$ symbol begs the question, if the products are vectors is the pi-product scalar or vector? (cross or dot product) If it is not vector, then the $cdot$ symbol would be more appropriate.
$endgroup$
– NictraSavios
Dec 28 '13 at 10:14
$begingroup$
I think you are right. Thanks.
$endgroup$
– mathlove
Dec 28 '13 at 10:20
$begingroup$
Your use of the $times$ symbol begs the question, if the products are vectors is the pi-product scalar or vector? (cross or dot product) If it is not vector, then the $cdot$ symbol would be more appropriate.
$endgroup$
– NictraSavios
Dec 28 '13 at 10:14
$begingroup$
Your use of the $times$ symbol begs the question, if the products are vectors is the pi-product scalar or vector? (cross or dot product) If it is not vector, then the $cdot$ symbol would be more appropriate.
$endgroup$
– NictraSavios
Dec 28 '13 at 10:14
$begingroup$
I think you are right. Thanks.
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– mathlove
Dec 28 '13 at 10:20
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I think you are right. Thanks.
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– mathlove
Dec 28 '13 at 10:20
add a comment |
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The uppercase Pi $prod$ symbol stands for the $product$ operator throughout mathematics, just as the uppercase Sigma $sum$ symbol would describe the sum operator. Think of the following analogy alliteration:
Pi is to a Product ... as Sigma is to a Sum.
answered Mar 16 at 15:12
Marvin CohenMarvin Cohen
174117
$endgroup$
add a comment |
$begingroup$
The uppercase Pi $prod$ symbol stands for the $product$ operator throughout mathematics, just as the uppercase Sigma $sum$ symbol would describe the sum operator. Think of the following analogy alliteration:
Pi is to a Product ... as Sigma is to a Sum.
answered Mar 16 at 15:12
Marvin CohenMarvin Cohen
174117
$endgroup$
add a comment |
$begingroup$
The uppercase Pi $prod$ symbol stands for the $product$ operator throughout mathematics, just as the uppercase Sigma $sum$ symbol would describe the sum operator. Think of the following analogy alliteration:
Pi is to a Product ... as Sigma is to a Sum.
answered Mar 16 at 15:12
Marvin CohenMarvin Cohen
174117
$endgroup$
The uppercase Pi $prod$ symbol stands for the $product$ operator throughout mathematics, just as the uppercase Sigma $sum$ symbol would describe the sum operator. Think of the following analogy alliteration:
Pi is to a Product ... as Sigma is to a Sum.
answered Mar 16 at 15:12
Marvin CohenMarvin Cohen
174117
answered Mar 16 at 15:12
Marvin CohenMarvin Cohen
174117
answered Mar 16 at 15:12
Marvin CohenMarvin Cohen
174117
answered Mar 16 at 15:12
Marvin CohenMarvin Cohen
174117
174117
add a comment |
add a comment |
$begingroup$
$$prod_{i=1}^n=1cdot2cdot3...cdot (n-1)cdot n$$
edited Dec 9 '17 at 16:06
Parcly Taxel
44.7k1376109
answered Dec 9 '17 at 15:59
fedfed
1
$endgroup$
$begingroup$
Welcome to stackexchange. It's a good thing that you want to help people by answering questions - but why post a duplicate answer to a very old question that already has a good accepted answer? Pay attention to the new, unanswered questions and contribute when you can.
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– Ethan Bolker
Dec 9 '17 at 16:04
add a comment |
$begingroup$
$$prod_{i=1}^n=1cdot2cdot3...cdot (n-1)cdot n$$
edited Dec 9 '17 at 16:06
Parcly Taxel
44.7k1376109
answered Dec 9 '17 at 15:59
fedfed
1
$endgroup$
$begingroup$
Welcome to stackexchange. It's a good thing that you want to help people by answering questions - but why post a duplicate answer to a very old question that already has a good accepted answer? Pay attention to the new, unanswered questions and contribute when you can.
$endgroup$
– Ethan Bolker
Dec 9 '17 at 16:04
add a comment |
$begingroup$
$$prod_{i=1}^n=1cdot2cdot3...cdot (n-1)cdot n$$
edited Dec 9 '17 at 16:06
Parcly Taxel
44.7k1376109
answered Dec 9 '17 at 15:59
fedfed
1
$endgroup$
$$prod_{i=1}^n=1cdot2cdot3...cdot (n-1)cdot n$$
edited Dec 9 '17 at 16:06
Parcly Taxel
44.7k1376109
answered Dec 9 '17 at 15:59
fedfed
1
edited Dec 9 '17 at 16:06
Parcly Taxel
44.7k1376109
edited Dec 9 '17 at 16:06
Parcly Taxel
44.7k1376109
edited Dec 9 '17 at 16:06
Parcly Taxel
44.7k1376109
44.7k1376109
answered Dec 9 '17 at 15:59
fedfed
1
answered Dec 9 '17 at 15:59
fedfed
1
answered Dec 9 '17 at 15:59
fedfed
1
1
$begingroup$
Welcome to stackexchange. It's a good thing that you want to help people by answering questions - but why post a duplicate answer to a very old question that already has a good accepted answer? Pay attention to the new, unanswered questions and contribute when you can.
$endgroup$
– Ethan Bolker
Dec 9 '17 at 16:04
add a comment |
$begingroup$
Welcome to stackexchange. It's a good thing that you want to help people by answering questions - but why post a duplicate answer to a very old question that already has a good accepted answer? Pay attention to the new, unanswered questions and contribute when you can.
$endgroup$
– Ethan Bolker
Dec 9 '17 at 16:04
$begingroup$
Welcome to stackexchange. It's a good thing that you want to help people by answering questions - but why post a duplicate answer to a very old question that already has a good accepted answer? Pay attention to the new, unanswered questions and contribute when you can.
$endgroup$
– Ethan Bolker
Dec 9 '17 at 16:04
$begingroup$
Welcome to stackexchange. It's a good thing that you want to help people by answering questions - but why post a duplicate answer to a very old question that already has a good accepted answer? Pay attention to the new, unanswered questions and contribute when you can.
$endgroup$
– Ethan Bolker
Dec 9 '17 at 16:04
add a comment |
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4
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Can you give the context in which you've found this symbol? $Pi$ is frequently used for products, and $coprod$ is frequently used for disjoint unions or for coproducts.
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– user61527
Dec 28 '13 at 5:30
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Edited and added.
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– NictraSavios
Dec 28 '13 at 5:32
2
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Excellent Question. Please note, in future, incase you ever need to know what a certain symbol means, refer to Wikipedia's list of Math symbols. I've asked the MSE community several times to make a list of their own but nothing's been done yet. But until it is, that little old wikipedia page is the best resource.
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– Nick
Dec 28 '13 at 9:43
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I did go there, In fact I looked through quite closely. I didn't see this symbol there because it looks more like a staple or upside down "U" on that page. See ->Π, not even close to $prod$. (Edit: Okay, in the Math.SE font it does. Go look and see!) (Edit_2: Ahh, I was only looking at the HTML style symbols. Didn't even notice the TeX style ones.)
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– NictraSavios
Dec 28 '13 at 10:01
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@Nictra: XD Yes, there are variants to the font. Mathematicians have never agreed on which is the standard font. But incase you ever have trouble searching for a notation in the list, go to the page and press
Ctrl+Fand in the search bar that pops up on the top right corner (if you have Chrome), paste the symbol you want to find. The list doesn't have all the symbols but I'm sure someone (someone from MSE) will fix it.$endgroup$
– Nick
Dec 28 '13 at 10:05