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/* PROGRAM example401A */; 
#include "math.h"                                      /*  1  */ 
#include "stdio.h"				       /*  2  */				   /*  2  */ 
float x,y ;                                            /*  3  */ 
float f(float v,float w ){                             /*  4  */ 
	return sin(w)/log(v);                          /*  5  */ 
}                                                      /*  6  */ 
float p(float u){                                      /*  7  */ 
	return (f(u*0.3,x+u)+sin(u))/exp(u);           /*  8  */ 
}                                                      /*  9  */ 
void main(){                                           /*  10 */ 
	printf ("please input x: ");                   /*  11 */ 
	scanf("%f",&x);                                /*  12 */ 
	y=(p(x)*p(x)+log(5))/(p(x+5)-abs(x))*p(x+2);   /*  13 */ 
	printf ("y(x)=%f\n",y);                        /*  14 */ 
}                                                      /*  15 */