Plotting a function inside a m-file?

A3.m: http://pastebin.com/8f98gynV f2.m: http://pastebin.com/jSdnBec0

I ran A3.m but it doesn't seem to create a correct plot.

Answer 1

[Razvan]

Function f2 returns only a number... Probably you want a vector, with one element for each element of x. In this case use

function F = f2(x)
 F = 2*(x.^4)-3*(x.^2)+x-7;
end

Answer 2

[Taha]

Thanks! =D