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geo_inner

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Zeno Rogue 2024-10-06 22:16:56 +02:00
parent 1a1c7ae21d
commit a14470cc97
1 changed files with 8 additions and 0 deletions
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hyperpoint.cpp
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@ -451,6 +451,14 @@ EX bool zero_d(int d, hyperpoint h) {
return true;
}
/** inner product in the current geometry */
EX ld geo_inner(const hyperpoint &h1, const hyperpoint &h2) {
ld res = 0;
for(int i=0; i<MDIM; i++) res += h1[i] * h2[i] * sig(i);
return res;
}
/** this function returns approximate square of distance between two points
* (in the spherical analogy, this would be the distance in the 3D space,
* through the interior, not on the surface)