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acos_clamp function added

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This commit is contained in:
Zeno Rogue 2021-04-07 14:46:10 +02:00
parent 35ae9bf34a
commit 7a89ad8b19
1 changed files with 3 additions and 1 deletions
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4
hyperpoint.cpp
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@ -305,6 +305,8 @@ EX ld wvolarea_auto(ld r) {
EX ld asin_clamp(ld x) { return x>1 ? M_PI/2 : x<-1 ? -M_PI/2 : std::isnan(x) ? 0 : asin(x); }
EX ld acos_clamp(ld x) { return x>1 ? 0 : x<-1 ? M_PI : std::isnan(x) ? 0 : acos(x); }
EX ld asin_auto_clamp(ld x) {
switch(cgclass) {
case gcEuclid: return x;
@ -319,7 +321,7 @@ EX ld acos_auto_clamp(ld x) {
switch(cgclass) {
case gcHyperbolic: return x < 1 ? 0 : acosh(x);
case gcSL2: return x < 1 ? 0 : acosh(x);
case gcSphere: return x > 1 ? 0 : x < -1 ? M_PI : acos(x);
case gcSphere: return acos_clamp(x);
case gcProduct: return PIU(acos_auto_clamp(x));
default: return x;
}