[sdiy] DSP book recommendation wanted

[Aaron Lanterman]

On Sep 24, 2009, at 3:15 PM, Nathan M. Reeves wrote:

> lol
>
> if remember correctly...
>
> d/dx(cos(x))= -sin(x) <- yup
>
> d/dx(sin(x))= cos(x) <- yup

>
> so...

In the below three, remove the d/dx in front and put dx at the end and  
an indefinite integral symbol in front

> d/dx(cos(a x)) =-asin(a x) <- yup
>
> d/dx sin(a x) = acos(a x) <- yup
>
> d/dx e^(a x) = axe^(a x) <- remove the first x on the RHS, so it's a  
> e^(a x)

- Aaron