cos: returns the cosine of arg : cos « math.h « C / ANSI-C

1. C / ANSI-C
2. math.h
3. cos

cos: returns the cosine of arg

    

//Declaration: float cosf(float arg); 
               double cos(double arg); 
               long double cosl(long double arg);  
//Parameter:   arg must be in radians. 

  #include <math.h>
  #include <stdio.h>
  int main(void)
  {
    double val = -1.0;

    do {
      printf("Cosine of %f is %f.\n", val, cos(val));
      val += 0.1;
    } while(val<=1.0);

    return 0;
  }

         
/*
Cosine of -1.000000 is 0.540302.
Cosine of -0.900000 is 0.621610.
Cosine of -0.800000 is 0.696707.
Cosine of -0.700000 is 0.764842.
Cosine of -0.600000 is 0.825336.
Cosine of -0.500000 is 0.877583.
Cosine of -0.400000 is 0.921061.
Cosine of -0.300000 is 0.955336.
Cosine of -0.200000 is 0.980067.
Cosine of -0.100000 is 0.995004.
Cosine of 0.000000 is 1.000000.
Cosine of 0.100000 is 0.995004.
Cosine of 0.200000 is 0.980067.
Cosine of 0.300000 is 0.955336.
Cosine of 0.400000 is 0.921061.
Cosine of 0.500000 is 0.877583.
Cosine of 0.600000 is 0.825336.
Cosine of 0.700000 is 0.764842.
Cosine of 0.800000 is 0.696707.
Cosine of 0.900000 is 0.621610.
Cosine of 1.000000 is 0.540302.
*/ 

           
       

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