Answers given as equation

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Christian Jaramillo
编辑： Walter Roberson 2018-8-26
Hello,
I have the equation;
% Radius = r
r = 10*u.ft;
SurfaceAreaOfASphere = (4*pi*r^2)
Returning an answer of;
400*pi*[ft]^2
But I want an answer without pi. In a sense evaluate the expression, any ideas?

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采纳的回答

John D'Errico
John D'Errico 2018-8-25
Do you mean this?
vpa(SurfaceAreaOfASphere)
ans =
1256.6370614359172953850573533118*[ft]^2

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