SBMatrix (https://github.com/scienartbb/SBMatrix)

C++ template based N-Dim matrix and vector class

Platform Independent. (iOS/Android/Mac/Win32/Linux)

Simple, just 1 Header File.

Mat22 multiply

typedef SBMatrix<float, 2, 2> Mat22;
Mat22 a = {1,2,0,1}, b={1,0,0,1};
Mat22 c = a*b;
printf("%s - %f %f %f %f", __FUNCTION__, c.m[0][0], c.m[0][1], c.m[1][0], c.m[1][1]);

Mat22, Vec2 multiply

typedef SBMatrix<float, 2, 2> Mat22;
typedef SBMatrix<float, 2, 1> Vec2;
Mat22 a = {2,0,0,3};
Vec2 b = {1,1};
Vec2 c = a*b;
printf("%s - %f %f ", __FUNCTION__, c.x, c.y);

N-Dim.

typedef SBMatrix<float, 3, 3> Mat3; // for 3x3
typedef SBMatrix<float, 4, 4> Mat4; // for 4x4
typedef SBMatrix<float, 5, 5> Mat5; // for 5x5

also non square!

typedef SBMatrix<float, 3, 2> Mat32; // for 3x3
typedef SBMatrix<float, 4, 3> Mat43; // for 4x4
typedef SBMatrix<float, 5, 2> Mat52; // for 5x5

Matrix Inverse (Square Matrix)

typedef SBMatrix<float, 2, 2> Mat22;
Mat22 a = {2,0,0,3};
Mat22 b = a.inv();

Others

• Determinent (det())
• Gauss Elimination (gausselim())
• Gauss Jordan Elimination (gjordelim())
• LU factorization (lu())
• QR factorization (qr())

Global Routines

• rotation
• translation
• scaling
• skewing
• lookAt
• projection (Orthogonal, Perspective)
• euler
• affine transform 2D / 3D
• lerp
• de casteljau
• bezier quad / cubic
• arc
• circle
• hermite
• perpendicular CW / CCW
• find unit circle
• find ellipse