My code will not work please help.

#include "stdio.h$"$

#include "math.h$"$

float rieman$($float lower, float upper, float intervals$)\{$

int width $=($upper $-$ lower$)/$ intervals;

float result;

for $($float i $=$ lower; i $<$ upper; i $+=$ width$)\{$

result $=$ result $+$ exp$($pow$($i$,2))$;

$\}$

return result;

$\}$

int main$()\{$

float upper;

float lower;

float intervals;

scanf$("\%$f$",$ &lower$)$;

scanf$("\%$f$",$ &upper$)$;

scanf$("\%$f$",$ &intervals$)$;

printf$("\%$f$",$ rieman$($lower$,$ upper, intervals$))$;

$\}$