Problema c++

[G3ner1c]

#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;

}

else

if(d==0)

{

x==-b/2*a;

cout<<"x= "<<x;

}

else

if(d<0)

{cout<<"complex";}

}

Imi spune ca am o eroare la "x=(-b+(SQRTd))/2*a;".Nu inteleg ce greseala este.

[SticKyWoX]

SQRTd -> sqrt(d)

si trebuie sa dai #include <math.h>

[G3ner1c]

Ms frate!

[dekeeu]

Si mai ai acolo un

x==-b/2*a;

care e defapt:

x=-b/2*a;

[G3ner1c]

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?

[dekeeu]

#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

[G3ner1c]

Va mutlumesc, acum m-am lamurit, nu am folosit calumea switch-u ala.