First Draft: Add FFI subsection on math.h

[jgarte]

[jgarte]

note to self:

char says to

(coerce 12.34 'double-float) I would include that in the c-* functions

[vindarel]

Nice. First draft, so not ready to merge?

[jgarte]

@vindarel I pushed an update to remove the Guix specific instructions.

[vindarel]

Suggestions: show the function signature of C ceil, what it accepts as input and what it outputs, so when you show

(cffi:defcfun ("ceil" c-ceil) :double (number :double))

you can also explain that this is the input, this is the output and what is the overall syntax of defcfun.

[jgarte]

@vindarel @Bike

Thanks for the suggestions! They are much appreciated. Give me a few days (maybe sooner) and I'll push some more updates. I'm just busy at the moment finishing out work before Thanksgiving break :)

[vindarel]

hey @jgarte it would be really great to finish this.