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diff general/numerical/erfratio.m @ 4:e44f49929e56

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Adding reorganised general toolbox, now in several subdirectories.
author samer
date Sat, 12 Jan 2013 19:21:22 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/general/numerical/erfratio.m	Sat Jan 12 19:21:22 2013 +0000
@@ -0,0 +1,5 @@
+function y=erfratio(x)
+% erfratio - returns gausspdf(x)./erfp(x) but using a better computation
+%
+% erfratio :: real -> nonneg.
+y = 2./(sqrt(2*pi)*erfcx(x/sqrt(2)));