iqbal: Reduce gradient step

1e-3 is withing the range of value we're looking for, so we need
something smaller.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
master
Sylvain Munaut 10 years ago
parent c0fd99fcd2
commit 2e8cef8f61
  1. 2
      src/iqbal.c

@ -249,7 +249,7 @@ _iqbal_objfn_value(struct _iqbal_state *state, float x[2])
static void
_iqbal_objfn_gradient(struct _iqbal_state *state, float x[2], float v, float grad[2])
{
const float GRAD_STEP = 0.001f;
const float GRAD_STEP = 1e-6f;
float xd[2], vd[2];
xd[0] = x[0] + GRAD_STEP; xd[1] = x[1];

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