1 files changed, 0 insertions, 53 deletions
diff --git a/geometry/formulas3d.cpp b/geometry/formulas3d.cpp
deleted file mode 100644
index 84e17c0..0000000
--- a/geometry/formulas3d.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-// Skalarprodukt
-double operator|(pt3 a, pt3 b) {
-	return a.x * b.x + a.y*b.y + a.z*b.z;
-}
-double dot(pt3 a, pt3 b) {return a|b;}
-
-// Kreuzprodukt
-pt3 operator*(pt3 a, pt3 b) {return {a.y*b.z - a.z*b.y,
-                                     a.z*b.x - a.x*b.z,
-                                     a.x*b.y - a.y*b.x};}
-pt3 cross(pt3 a, pt3 b) {return a*b;}
-
-// Länge von a
-double abs(pt3 a) {return sqrt(dot(a, a));}
-double abs(pt3 a, pt3 b) {return abs(b - a);}
-
-// Mixedprodukt
-double mixed(pt3 a, pt3 b, pt3 c) {return a*b|c;};
-
-// orientierung von p zu der Ebene durch a, b, c
-// -1 => gegen den Uhrzeigersinn,
-//  0 => kolliniear,
-//  1 => im Uhrzeigersinn.
-int orientation(pt3 a, pt3 b, pt3 c, pt3 p) {
-	double orien = mixed(b - a, c - a, p - a);
-	return (orien > EPS) - (orien < -EPS);
-}
-
-// Entfernung von Punkt p zur Ebene a,b,c.
-double distToPlane(pt3 a, pt3 b, pt3 c, pt3 p) {
-	pt3 n = cross(b-a, c-a);
-	return (abs(dot(n, p)) - dot(n, a)) / abs(n);
-}
-
-// Liegt p in der Ebene a,b,c?
-bool pointOnPlane(pt3 a, pt3 b, pt3 c, pt3 p) {
-	return orientation(a, b, c, p) == 0;
-}
-
-// Schnittpunkt von der Grade a-b und der Ebene c,d,e
-// die Grade darf nicht parallel zu der Ebene sein!
-pt3 linePlaneIntersection(pt3 a, pt3 b, pt3 c, pt3 d, pt3 e) {
-	pt3 n = cross(d-c, e-c);
-	pt3 d = b - a;
-	return a - d * (dot(n, a) - dot(n, c)) / dot(n, d);
-}
-
-// Abstand zwischen der Grade a-b und c-d
-double lineLineDist(pt3 a, pt3 b, pt3 c, pt3 d) {
-	pt3 n = cross(b - a, d - c);
-	if (abs(n) < EPS) return distToLine(a, b, c);
-	return abs(dot(a - c, n)) / abs(n);
-}