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write a matlab command to find th roots of: ax^2+bx+c=0

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Ammaa AlSada
Ammaa AlSada 2019-1-13
评论： Walter Roberson 2022-4-15
write a MATLAB commads to find the roots of : ax^2+bx+c=0 , where a,b and c are constants?

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jahanzaib ahmad
jahanzaib ahmad 2019-1-13
编辑：madhan ravi 2019-1-15
a=1;
b=2;
c=3;
x1 = -b +(sqrt((b^2)-(4ac)/(2a))x;
x2=-b-(sqrt((b^2)-(4ac)/(2a));
disp(x1);
disp(x2);
  1 个评论
jahanzaib ahmad
jahanzaib ahmad 2019-1-14
编辑：madhan ravi 2019-1-15
a=1;
b=2;
c=3;
x1 = -b +(sqrt((b.^2)-(4.*a.*c)))/(2.*a);
x2=-b -(sqrt((b.^2)-(4.*a.*c)))/(2.*a);
disp(x1);
disp(x2);

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更多回答（2 个）

madhan ravi
madhan ravi 2019-1-14
编辑：madhan ravi 2019-1-14
help roots
doc roots
help poly2sym
doc poly2sym
Abu Samad
Abu Samad 2022-4-15
ax^2+bx+c=0 where abc[1,-3,2]

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