Lab6 v1.3Sin,cos,tan,cot, C (gcc)

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//gcc 5.4.0
//Start Program
//Int in
//double sin
//double cos
//double tan
//double cot
//READ x
//COMPUTE sin(x)
//   sin=((x-3x^3)/3!)+((x^5)/5!)-(x^7)/7!);
//COMPUTE cos(in)
// numo square loop
// deno factorial loop
//   cos=((1-x^2)/2!)+((x^4)/4!)-((x^6)/6!);
//COMPUTE tan(in)
 //    tan=sin/cos
//COMPUTE cot(in)
//     cot=1/tan
//PRINT sin, cos,tan, and cot
//End Program
//
#include  <stdio.h>

int main(void)
{
int x;
//printf("%d\n",x);
double sin;
double cos;
double tan;
double cot;
printf("Please input number to be trigged\n");
scanf("%d",&x);
printf("%d\n",x);
double f=(x*x*x*x*x*x*x);   
double e=(x*x*x*x*x*x);   
double d=(x*x*x*x*x);    
double c=(x*x*x*x);
double b=(x*x*x);
double a=(x*x);
sin=x-((b)/(3*2*1))+((d)/(5*4*3*2*1))-((f)/(7*6*5*4*3*2*1));
for(i=0;i<=x;++i)
    {
    if(i%2==0)
    {
    a=x
    }
    else
      continue;
printf("sin=%lf\n",sin);
cos=x-((a)/(2*1))+((c)/(4*3*2*1))-((e)/(6*5*4*3*2*1));
tan=sin/cos;
cot=1/tan;
printf("cos=%lf\ntan=%lf\ncot=%lf\n",cos,tan,cot);
 
}

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Compilation time: 0.12 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 0,35 sec