diff subsSymfun.m @ 609:8cbecf22075b feature/utux2D

Merge to get interpolation operators.
author Martin Almquist <malmquist@stanford.edu>
date Sat, 14 Oct 2017 22:36:31 -0700
parents 489bea7fc33f
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/subsSymfun.m	Sat Oct 14 22:36:31 2017 -0700
@@ -0,0 +1,14 @@
+% Subs for a symfun
+% f remains a symbolic function. If any of it's arguments is eliminated
+% it is removed from the argument list while preserving the order of the
+% other arguments
+function f = subsSymfun(f, old, new)
+    args = argnames(f);
+
+    newExpr = subs(f, old, new);
+    vars = symvar(subs(args, old, new));
+
+    newArgs = args(ismember(args,vars));
+
+    f = symfun(newExpr, newArgs);
+end
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