slr:: formula_exp now returns 0 for vel==0 instead of nan

2022-09-14 18:30:12 +02:00 · 2022-09-14 18:30:12 +02:00 · ae7574483e
parent db3d710dd4
commit ae7574483e
1 changed files with 3 additions and 1 deletions
--- a/nonisotropic.cpp
+++ b/nonisotropic.cpp
@ -2261,7 +2261,9 @@ EX namespace rots {

  EX hyperpoint formula_exp(hyperpoint vel) {
    bool sp = sphere;
-    ld K = sp ? 1 : -1;    
+    ld K = sp ? 1 : -1;
+
+    if(vel[0] == 0 && vel[1] == 0 && vel[2] == 0) return C0;
  
    ld len = hypot_d(3, vel);