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how would i plot upper half of an ellipse in matlab using standar form?

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Amir
Amir 2015-2-28
回答： Mischa Kim 2015-2-28
(x^2/a^2) + (y^2/b^2) = 1

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Mischa Kim
Mischa Kim 2015-2-28
With a bit of math, solve for y
a = 2; b = 3;
x = -a:0.1:a;
y = sqrt(b^2 - b^2*(x.^2/a^2));
plot(x,y)

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