MATLAB Answers

How do you find the intersection points of two functions?

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diadalina
diadalina on 10 Nov 2019
Answered: Star Strider on 10 Nov 2019
i have A=10+0.5*n;
P=8*exp(1.02*n) where n=1:110
i want to find the point when P>A ,numerically and graphically

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Answers (1)

Star Strider
Star Strider on 10 Nov 2019
It is straightforward to show that P>A for the entirety of ‘n’.
They do not ever intersect:
n=1:110;
A=10+0.5*n;
P=8*exp(1.02*n);
Out = P(P>A); % Desired Result
figure
plot(n, A, n, P)
grid
ylim([min(A) max(A)])
They would intersect at 0 if ‘n’ was allowed to have any negative values, and was continuoous.

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