1 files changed, 2 insertions, 2 deletions
diff --git a/init.c b/init.c
index 4df0f8f..e39d1b1 100644
--- a/init.c
+++ b/init.c
@@ -358,8 +358,8 @@ int td_solve(TDContext *td, double *coeffs_init[3])
         // second branch requested and no user-provided initial guess
         // execute two lower-branch solutions and extrapolate to get to the upper branch
         const int N = NB_EQUATIONS * td->nb_coeffs[0] * td->nb_coeffs[1];
-        const double delta = 1e-5;
-        const double a1 = a0 - delta;
+        const double delta = 1e-3;
+        const double a1 = a0 * (1.0 - delta);
 
         double cur_amplitude, new_amplitude, step;