Mercurial > repos > public > sbplib
diff +util/fzero_vec.m @ 86:3c39dd714fb6
In Curve: Added numerical FD differentiation if derivative is not supplied. Added arc length computation based on the derivative. Added arc length parameterization (but this function is very slow.). In +util: Added fzero_vec.m and integral_vec.m, which call fzero and integral but take vector arguments.
| author | Martin Almquist <martin.almquist@it.uu.se> |
|---|---|
| date | Sun, 29 Nov 2015 14:28:53 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/+util/fzero_vec.m Sun Nov 29 14:28:53 2015 +0100 @@ -0,0 +1,14 @@ +function I = fzero_vec(f,lim) +% Wrapper around the built-in function fzero that +% handles multiple functions (vector-valued f). + + fval = f(lim(1)); + I = zeros(size(fval)); + + for i = 1:length(fval) + e = zeros(size(fval)); + e(i) = 1; + I(i) = fzero(@(t) sum(e.*f(t)),lim); + end + +end \ No newline at end of file