MTMatrix
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+---MTMatrix53
+(MTMatrix53*)matrixFromString:(NSString*)str
reads and initializes a matrix from a string
create identity matrix
+(MTMatrix53*)transformation3By3:(MTMatrix*)first and:(MTMatrix*)second
computes the transformation of the second onto the first coordinates the coordinates are passed in 3x3 matrices: P1X P1Y P1Z P2X P2Y P2Z P3X P3Y P3Z
return reset-to-origin vector
return rotation matrice
return translation matrice
returns the matrix for an inverse transformation