Member Avatar for cocotugo

ok im trying to make a program for solving square equations by the general formula
but for some reason i cannot get it to solve the equation
so if anyone can help me
this is my code:

va= Integer.parseInt(a.getText());
vb= Integer.parseInt(b.getText());
vc= Integer.parseInt(c.getText());
vac=(4*va*vc);
vbc=(2*vb*vb);
vac2= (2*va);
vb2=(-1*vb);
raiz = Math.sqrt(vbc-vac);

vx1= ((vb2+raiz) / vac2);
vx2= ((vb2-raiz) / vac2);

x1p=String.valueOf(vx1);
x2p=String.valueOf(vx2);

x1.setText(x1p);
x2.setText(x2p);

  • 3 Contributors
  • 3 Replies
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  • 11 Hours Discussion Span
  • Latest Post Latest Post by cocotugo
Member Avatar for Ezzaral

Well, what problems are you having? What errors if any? Posting several lines of abbreviated variables and equations and saying "it's not right" is a bit vague.

Member Avatar for javaAddict 
vac=(4*va*vc);
vbc=(2*vb*vb);
....
raiz = Math.sqrt(vbc-vac);

The correct formula is b*b - 4*a*c. You write: vbc-vac = 2*vb*vb - 4*va*vc

Member Avatar for cocotugo

thats right
thenk you javaAddict

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