Post History
#3: Post edited
- I was reading a Physics book. Then I saw an equation which was looking like this :
- $$\int dx dy dz d p_x dp_y dp_z$$
- I was thinking it from just a Calculus book. I can see lots of variable (momentum) changing (adding all the "pieces") respect to their position. When I saw the equation a question came to my mind which is : Does it have any physical meaning if I just think it from Mathematics? Is there possible way to evaluate it?
- Usually the book wrote that
- $$\int dx dy dz d p_x dp_y dp_z=V4\pi (\frac{hv}{c})^2 h\frac{dv}{c}$$
- I am not sure if I wrote it correctly cause I had taken the image of that book illegally that's why I couldn't take whole equation pic but I didn't notice it that time.
I didn't see this kind integral in my calculus book.
- I was reading a Physics book. Then I saw an equation which was looking like this :
- $$\int dx dy dz d p_x dp_y dp_z$$
- I was thinking it from just a Calculus book. I can see lots of variable (momentum) changing (adding all the "pieces") respect to their position. When I saw the equation a question came to my mind which is : Does it have any physical meaning if I just think it from Mathematics? Is there possible way to evaluate it?
- Usually the book wrote that
- $$\int dx dy dz d p_x dp_y dp_z=V4\pi (\frac{hv}{c})^2 h\frac{dv}{c}$$
- I am not sure if I wrote it correctly cause I had taken the image of that book illegally that's why I couldn't take whole equation pic but I didn't notice it that time.
- I didn't see this kind integral in my calculus book.
- I wonder which I was reading that wrote single integral. But it I was directly searching through online I found that another had wrote [6 integral](https://books.google.co.uk/books?id=47-Vd9MpBuoC&pg=PA156&lpg=PA156&dq=%E2%88%ABdxdydzdpxdpydpz&source=bl&ots=lRK0fuva43&sig=ACfU3U04fm5lLTge3oK_Vevn8fd2CXUTbA&hl=en&sa=X&ved=2ahUKEwji5-y7vpDzAhVuQEEAHR6jBTkQ6AF6BAgbEAM#v=onepage&q=%E2%88%ABdxdydzdpxdpydpz&f=false)
- $$\int\int\int\int\int\int dx\, dy\, dz\, d p_x\, dp_y\, dp_z$$
- which proves that they are taking integral for each function.
- Note : I am honestly saying I don't understand anything of it now. And I may not understand answer properly also. But I am just leaving the question to read in future.. :)
#2: Post edited
- I was reading a Physics book. Then I saw an equation which was looking like this :
- $$\int dx dy dz d p_x dp_y dp_z$$
- I was thinking it from just a Calculus book. I can see lots of variable (momentum) changing (adding all the "pieces") respect to their position. When I saw the equation a question came to my mind which is : Does it have any physical meaning if I just think it from Mathematics? Is there possible way to evaluate it?
- Usually the book wrote that
- $$\int dx dy dz d p_x dp_y dp_z=V4\pi (\frac{hv}{c})^2 h\frac{dv}{c}$$
I am not sure if I wrote it correctly cause I had taken the image of that book illegally that's why I couldn't take whole equation pic but I didn't notice it that time.
- I was reading a Physics book. Then I saw an equation which was looking like this :
- $$\int dx dy dz d p_x dp_y dp_z$$
- I was thinking it from just a Calculus book. I can see lots of variable (momentum) changing (adding all the "pieces") respect to their position. When I saw the equation a question came to my mind which is : Does it have any physical meaning if I just think it from Mathematics? Is there possible way to evaluate it?
- Usually the book wrote that
- $$\int dx dy dz d p_x dp_y dp_z=V4\pi (\frac{hv}{c})^2 h\frac{dv}{c}$$
- I am not sure if I wrote it correctly cause I had taken the image of that book illegally that's why I couldn't take whole equation pic but I didn't notice it that time.
- I didn't see this kind integral in my calculus book.
#1: Initial revision
$\int dx dy dz d p_x dp_y dp_z$ Does it have any physical meaning?
I was reading a Physics book. Then I saw an equation which was looking like this :
$$\int dx dy dz d p_x dp_y dp_z$$
I was thinking it from just a Calculus book. I can see lots of variable (momentum) changing (adding all the "pieces") respect to their position. When I saw the equation a question came to my mind which is : Does it have any physical meaning if I just think it from Mathematics? Is there possible way to evaluate it?
Usually the book wrote that
$$\int dx dy dz d p_x dp_y dp_z=V4\pi (\frac{hv}{c})^2 h\frac{dv}{c}$$
I am not sure if I wrote it correctly cause I had taken the image of that book illegally that's why I couldn't take whole equation pic but I didn't notice it that time.