From dc4d1043b4391003cea28b3bedbc660fad63dea1 Mon Sep 17 00:00:00 2001
From: Elias Pipping <elias.pipping@fu-berlin.de>
Date: Sat, 10 Sep 2011 21:19:21 +0200
Subject: [PATCH] Nuke obsolete function: directionalDerivative
---
src/bisection-example-new.cc | 11 -----------
1 file changed, 11 deletions(-)
diff --git a/src/bisection-example-new.cc b/src/bisection-example-new.cc
index f4820def..2e0f9181 100644
--- a/src/bisection-example-new.cc
+++ b/src/bisection-example-new.cc
@@ -38,17 +38,6 @@ class SampleFunctional {
return y * v + func_(v.two_norm()); // <1/2 Av - b,v> + H(|v|)
}
- // Assumes |dir| = 1.
- double directionalDerivative(const SmallVector x,
- const SmallVector dir) const {
- assert(abs(dir.two_norm() - 1) < 1e-8);
-
- if (x == SmallVector(0.0))
- return func_.rightDifferential(0);
-
- return (x * dir > 0) ? PlusGrad(x) * dir : MinusGrad(x) * dir;
- }
-
SmallVector minimise(const SmallVector x) const {
SmallVector descDir = ModifiedGradient(x);
--
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