Error using / Matrix dimensions must agree

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Katharine Robbins
Katharine Robbins 2019-8-13
回答： Torsten 2019-8-13
This is my script (named partf):
x = 2;
h = 10.0.^-(1:10);
fp = (1/(x + h) - 2*(1/x) + 1/(x - h)) ./(h^2);
er = abs(fp - 2/(x^3))
I do not know why I am getting this error, and what it means:
Error using /
Matrix dimensions must agree.
Error in partf (line 3)
fp = (1/(x + h) - 2*(1/x) + 1/(x - h)) ./(h^2);

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采纳的回答

Torsten
Torsten 2019-8-13
fp = (1./(x + h) - 2*(1/x) + 1./(x - h)) ./h.^2;

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