How do I create a function finding Surface Area, Volume, and Density of a cone?
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Russell Van Hoesen
el 10 de Feb. de 2021
Respondida: Christopher Stapels
el 19 de Mayo de 2022
I've already created a function, and it reads as follows and gives me wildly incorrect answers. Is there something I'm missing?
function [SA,V,D] = coneProperties(r,m,h)
SA = pi*r*(r+sqrt(h.^2 + r.^2));
V = pi*r^2*(h/3);
D = m./V;
The surface area answer should be about 254, but it gave me 1.337628854861238e+03, which is very much not the right answer. I'm not sure what I've done wrong, so any help is appreciated!
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the cyclist
el 10 de Feb. de 2021
Your formulas look correct to me.
What input values of r, m, and h did you use, to get those expected values?
Are you sure you entered the inputs in the correct order?
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Christopher Stapels
el 19 de Mayo de 2022
Looks like the OP had it right, but Im adding the formula back here for completeness.
function [SA,V,D] = coneProperties(r,m,h)
SA = pi*r*(r+sqrt(h.^2 + r.^2));
V = pi*r^2*(h/3);
D = m./V;
% Radius r, mass m, height h.
% Surface Area SA, Volume V, Density D.
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