C语言真题讲解.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,练习,2,、用函数实现数学表达式,编写函数求,2.2-x,fun1(x)=+0.6x-2.2,x(x-1)+4.2,在,main(),函数中调用,fun1,函数,#include,#include,double fun1(double x),double y=0.0;,y=(2.2-fabs(x)/(x*(x-1)+4.2)+0.6*x-2.2;,return y;,void main(),printf(fun1(1.66)=%.3lfn,fun1(1.66);,#include,#include,double fun1(double x),/*/,/*/,void main(),clrscr,();,printf(fun1(0.76)=%8.3lfn,fun1(0.76);,printf(fun1(3.00)=%8.3lfn,fun1(3.00);,printf(fun1(3.76)=%8.3lfn,fun1(3.76);,#include,#include,double fun1(double x),/*/,/*/,void main(),clrscr,();,printf(fun1(0.76)=%8.3lfn,fun1(0.76);,printf(fun1(3.00)=%8.3lfn,fun1(3.00);,printf(fun1(3.76)=%8.3lfn,fun1(3.76);,#include,#include,double fun1(double x),/*/,/*/,void main(),clrscr,();,printf(fun1(0.76)=%8.3lfn,fun1(0.76);,printf(fun1(3.00)=%8.3lfn,fun1(3.00);,printf(fun1(3.76)=%8.3lfn,fun1(3.76);,f(x,)=,#include,#include,double,f(float,x),/*/,/*/,void main(),float x;,double y;,printf(Please,input a number:n);,scanf(%f,&x,);,y=,f(x,);,printf(f(%.3f)=%.3fn,x,y);,getch,();,#include,#include,double,f(float,x),/*/,/*/,void main(),float x;,double y;,printf(Please,input a number:n);,scanf(%f,&x,);,y=,f(x,);,printf(f(%0.2f)=%0.2fn,x,y);,getch,();,