G3ner1c Posted November 8, 2013 Report Share Posted November 8, 2013 #include<iostream>using namespace std;int main(){int a,b,c;float d,x,y;cout<<"a= ";cin>>a;cout<<"b= ";cin>>b;cout<<"c= ";cin>>c;d=b*b-4*a*c;if(d>0){x=(-b+(SQRTd))/2*a;y=(-b-(SQRTd))/2*a;cout<<"x= "<<x;cout<<"y= "<<y;}elseif(d==0){x==-b/2*a;cout<<"x= "<<x;}elseif(d<0){cout<<"complex";}}Imi spune ca am o eroare la "x=(-b+(SQRTd))/2*a;".Nu inteleg ce greseala este. Quote Link to comment Share on other sites More sharing options...
SticKyWoX Posted November 8, 2013 Report Share Posted November 8, 2013 SQRTd -> sqrt(d)si trebuie sa dai #include <math.h> Quote Link to comment Share on other sites More sharing options...
G3ner1c Posted November 8, 2013 Author Report Share Posted November 8, 2013 Ms frate! Quote Link to comment Share on other sites More sharing options...
dekeeu Posted November 8, 2013 Report Share Posted November 8, 2013 Si mai ai acolo un x==-b/2*a; care e defapt:x=-b/2*a; Quote Link to comment Share on other sites More sharing options...
G3ner1c Posted November 8, 2013 Author Report Share Posted November 8, 2013 Asta e ultima #include<iostream>#include<math.h>using namespace std;int main(){int a,b,c;float d,x1,x2,x;cout<<"a= ";cin>>a;cout<<"b= ";cin>>b;cout<<"c= ";cin>>c;d=b*b-4*a*c;Switch(d){case d==0: x=-b\2*a; cout<<"x= "<<x;break;case d<0: cout<<"Solutia e nr complex";break;default:x1=(-b+(sqrt(d)))/2*a; x2=(-b-(sqrt(d)))/2*a; cout<<"x1= "<<x1; cout<<"x2= "<<x2;}}Vreau sa tranform ala de mai sus, sa folosesc case in loc de if.Ce nu e corect? Quote Link to comment Share on other sites More sharing options...
dekeeu Posted November 8, 2013 Report Share Posted November 8, 2013 (edited) #include<iostream>#include<math.h>using namespace std;int main(){int a,b,c;float d,x1,x2,x;cout<<"a= ";cin>>a;cout<<"b= ";cin>>b;cout<<"c= ";cin>>c;d=b*b-4*a*c;if(d==0) { x=-b/2*a; cout<<"X="<<x; }else if(d<0) cout<<"Solutia este nr. complex";else{ x1=(-b+(sqrt(d)))/2*a; x2=(-sqrt(d))/2*a; cout<<"x1= "<<x1; cout<<"x2= "<<x2;}}Ce nu e corect?**Nu poti face comparatii in switch gen : a<4 .**Nu poti pune intr-un switch numere reale, doar intregi. Edited November 8, 2013 by dekeeu Quote Link to comment Share on other sites More sharing options...
G3ner1c Posted November 9, 2013 Author Report Share Posted November 9, 2013 Va mutlumesc, acum m-am lamurit, nu am folosit calumea switch-u ala. Quote Link to comment Share on other sites More sharing options...