Hello,
I doubt if I can use the result from the command 'diff' to calculate in the next step.
Say, I have a function F(x,y,a,b,h). I first 'sym' them and let F be the function. I then let f = diff(F,x), for example. I just then let a,b,x,y,h have some values. Unfortunately I cannot use 'f' to calculate for the result since it is a string varible containing result from diff.
Is there any way to use the result from diff as another function that I can plug in numbers?
Thank you for you kind help.
I doubt if I can use the result from the command 'diff' to calculate in the next step.
Say, I have a function F(x,y,a,b,h). I first 'sym' them and let F be the function. I then let f = diff(F,x), for example. I just then let a,b,x,y,h have some values. Unfortunately I cannot use 'f' to calculate for the result since it is a string varible containing result from diff.
Is there any way to use the result from diff as another function that I can plug in numbers?
Thank you for you kind help.
