View Single Post
ktpr2
#1
Mar27-05, 02:53 AM
P: 192
I have

f[x_] := ax+b/2x+d
f'[x]

and I get

-2(ax+b)/(d+2x)^2

instead of

ad-2b/(d+2x)^2

Assuming the above, my answer, is correct, why does mathemetica give me its answer? Is it interpreting one of the variables as some kind of weird constant?
Phys.Org News Partner Science news on Phys.org
Flapping baby birds give clues to origin of flight
Prions can trigger 'stuck' wine fermentations, researchers find
Socially-assistive robots help kids with autism learn by providing personalized prompts