C語言程序設計(何欽銘顏暉著)高等教育出版社第二章課后答案

1、s28#inc-udcAsidio.hvvoidmain。floaifkhroelsius;scanfc%f4f*hr)；cc-siusH5.0、9*(fhhr32)jprins=fhhrH%f,cc-siusH%frl=fehroc-siUS)；s29includeAstdio.hvvoidmain()iniabc-floaiavg-Scanf(=%d%d%d=4a4b4c)八avg=(a+b+c)、3.0八prin5=au%d.bH%doH%d&3vg=%fn=abpavg)；x210注nc-udeAsaio.hvvoidmain()亠flos.xy-scanEv4x)；iKX=o)yno

2、ie-seynlirl.ns=XH%.3f;y=%.3f5xy)；s2111#incmdeAstdiohv練習212#includcvoidmain()intlower,upper,fahr;floatCelsius;scanf(,%d%dn,&lowcr,&uppcr);printf(nfahrcclsiusnn);fbr(fahr=lower;fahr=upper;fahr:=fahr+2)celsius=5.0/9*(fahr-32);printf(%d%10.2fn,fahr,Celsius);練習2-13#includevoidmain()intn,i;floatsum=0;scan

3、f(%dn,&n);for(i=l;i=n;i4-+)sum=sum+l.0/i;printf(,sum=%.2fn,sum);練習2-14#includevoidmain()intnJ;floatsum=0;scanfrn%d&n);intn,i;floatsum=0.0,flag=l.0,d=1.0;scanf(%dH,&n);for(i=l;i=n;i+)sum=sum+flag/d;d=d+3;flag=-flag;printtV!sum=%.2fnn,sum);練習216#includevoidmain()intm,n,i;doublesum=0.05product=l.0;scan

4、f(%d%d”,&m,&n);for(i=l;i=m;i+)product=product*i;sum=sum+product;product=1.0;fbr(i=1;i=n;i+)product=product*i;sum=sum+product;printflnm!+n!=%lfn,sum);練習2-18#include#includevoidmain()intnJ;scamC%d”,&n);fbr(i=0;i=n;i+)scanf(=%d=&n)八fbrTljA=n;i+)prinifc.%1od%102fnhct(i)；doublefhAintn)in二；doubleproduc一0-

5、fbr(H-lxn5.+)produci=produci*;returnproduct八書220includeAstdio.hvdoublefhct(imn)八voidmain。isSB-scanH=%d%d=&m4n)；priH仝=%5d%5d%10.2fn=m5cwci(m)*fhctmm)-doublefhcomn)宀in二；doubleproduce1.0;fo*r(H17-HHi+)product=produc-*;returnproduct;出圏211甘includeAstdio.hvvoidmaino亠ininum=num2八scanf(=%d%d=num2)八printfv%d

6、+%dH%dvlHuml3um23uml+num2)八voidmain()floatx,pow=1.0;inti,n;scanif%f%d”,&x,&n);for(i=1;i=n;i+)pow=pow*x;printf(”pow(%f；%d)=%fn”,x,n,pow);習題24#includevoidmain()intfloatsum=0;scanf(”d%d”,&m,&n);for(i=m;i=n;i+)sum=surn+(i*i+l.0/i);printf(,sum=%fn,sum);習題2-5#includevoidmain()intn,i；floatsum=0,flag=1.0;sc

7、anfC%d”,&n);fbr(i=l;i=n;i+)sum=sum+flag*i/(2*i-l);flag=-flag;printf(nsum=%fnn,sum);習題2-6moncy=loan*ratc*pow(1+ratc,ycar)/(pow(1+ratc,ycar)-1);printfVycar=%djnoncy=%lfn；ycar,money);習題2-7#include#includevoidmain()intn,i;floatsum=0;scanfC%dH,&n);for(i=1;i=n;i+)sum=sum+pow(2,i);printf(nsum=%fn,sum);習題2-8#includedoublefact(intn);voidmain()intnj;doublesum=0;scanfT%d”,&n);for(i=1;i