how can i make this function work with arrays?

2021 6 10
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更新时间：2021 6 10
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i have this function which works great but whenever i input an array it says "matrix dimensions must agree"
function [f]=colebrook(R,k)
f=fzero(@(f) 1/sqrt(f)+2*log10(k/3.7+2.51/(R*sqrt(f))),[1e-18,1]);
end
what can i edit to make it work with arrays?

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dpb
dpb 2021-6-10
Use the "dot" math operators for * and / for element-by-element operation instead of matrix.
See section on "Array vs Matrix Operations" in documentation or type
doc mtimes
doc rdivide

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Elementwise operation:
...
f=fzero(@(f) 1./sqrt(f)+2*log10(k/3.7+2.51./(R*sqrt(f))),[1e-18,1]);
...

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dpb
dpb
2021-6-10

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