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tiny additions in vec.h and vecmat3.h

This commit is contained in:
Jiri Pittner 2024-01-18 14:31:00 +01:00
parent e75248eb23
commit 764baa3201
2 changed files with 12 additions and 0 deletions
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8
vec.h
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@ -363,6 +363,14 @@ public:
return sum;
};
//! compute the sum of squares the vector elements
inline const T sumsqr() const {
T sum(v[0]);
for(register int i=1; i<nn; i++){ sum += v[i]*v[i];}
return sum;
};
//! compute the product of the vector elements
inline const T prod() const {
T prod(v[0]);

4
vecmat3.h
View File

@ -79,6 +79,10 @@ public:
Vec3& operator/=(const T rhs) {return *this *= ((T)1/rhs);};
const Vec3 operator*(const T rhs) const {return Vec3(*this) *= rhs;};
const Vec3 operator/(const T rhs) const {return Vec3(*this) /= rhs;};
T sum() const {return q[0]+q[1]+q[2];};
T asum() const {return abs(q[0])+abs(q[1])+abs(q[2]);};
T sumsqr() const {return q[0]*q[0]+q[1]*q[1]+q[2]*q[2];};
T prod() const {return q[0]*q[1]*q[2];};
//Vec3 algebra
const Vec3 operator-() const {Vec3 r(*this); r.q[0]= -r.q[0]; r.q[1]= -r.q[1]; r.q[2]= -r.q[2]; return r;}; //unary minus