复数的基本运算C语言

floatreal;//数据对象 floatimage;

}fushu;

fushuComplexNumberInput(floata,floatb)//构造二元组 {

fushuc; c.real=a;//实部 c.image=b;//虚部 return(c);

}

fushuComplexNumberAdd(fushuc1,fushuc2)//求和运算 { fushusum;

sum.real=c1.real+c2.real;

sum.image=c1.image+c2.image; return(sum);

}

fushuComplexNumberSub(fushuc1,fushuc2)//求差运算 {

fushusub;

sub.real=c1.real-c2.real; sub.image=c1.image-c2.image; return(sub);

}

fushuComplexNumberMul(fushuc1,fushuc2)//求积运算 {

fushuMul;

Mul.real=c1.real*c2.real-c1.image*c2.image; Mul.image=c1.real*c2.image+c1.image*c2.real; return(Mul);

}

fushuComplexNumberDiv(fushuc1,fushuc2)//求商运算 { fushudiv; floatd1,d2,d3,d4;

d1=c1.real*c2.real+c1.image*c2.image;

d2=c2.real*c2.real+c2.image*c2.image; d3=c1.image*c2.real-c1.real*c2.image; d4=c2.real*c2.real+c2.image*c2.image; if(d2!=0&&d4!=0) {

div.real=d1/d2; div.image=d3/d4; return(div); } else

{

div.real=0; div.image=0; return(div);

}

}

voidComplexNumberOutput(fushuc)//输出运算结果 {

if(c.real==0.0&&c.image==0.0)printf(\"0\\n\");

if(c.real==0.0&&c.image!=0.0)printf(\"%fi\\n\ if(c.real!=0.0&&c.image==0.0)printf(\"%f\\n\

if(c.real!=0.0&&c.image!=0.0)printf(\"%f+(%fi)\\n\

}

voidmain()//主函数 {

intchoice;

intk;

floata1,a2,b1,b2;

structfushuc1,c2,sum,sub,mult,div; printf(\"欢迎进行复数的基本代数运算\\n\"); printf(\"1:复数加法运算\\n\"); printf(\"2:复数减法运算\\n\");

printf(\"3:复数乘法运算\\n\"); printf(\"4:复数除法运算\\n\"); printf(\"0:推出系统\\n\");

printf(\"请分别输入第一个复数的实部和虚部:\"); scanf(\"%f%f\ c1=ComplexNumberInput(a1,b1); printf(\"第一个复数为:\"); ComplexNumberOutput(c1);

printf(\"请分别输入第二个复数的实部和虚部:\"); scanf(\"%f%f\

c2=ComplexNumberInput(a2,b2); printf(\"第二个复数为:\"); ComplexNumberOutput(c2); for(;;) {

printf(\"请输入你选择的功能:\"); scanf(\"%d\ switch(choice) {

case0:exit(0); break;

case1:sum=ComplexNumberAdd(c1,c2); printf(\"求和后结果为:\"); ComplexNumberOutput(sum); break;

case2:sub=ComplexNumberSub(c1,c2);

printf(\"求差后结果为:\"); ComplexNumberOutput(sub); break;

case3:mult=ComplexNumberMul(c1,c2); printf(\"求积后结果为:\"); ComplexNumberOutput(mult); break;

case4:div=ComplexNumberDiv(c1,c2);

if(div.real!=0&&div.image!=0) {

printf(\"求商后结果:\"); ComplexNumberOutput(div); break; } else {

printf(\"除零错误，请重新输入第二个复数；\\n\"); k=0;

exit(k);

}

}

}

}