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8.3 Compound Multiplication and Assignment
void operator*=(int x, int y)x *= y is equivalent to x = x * y.
void operator*=(real x, real y)x *= y is equivalent to x = x * y.
void operator*=(vector x, real y)x *= y is equivalent to x = x * y.
void operator*=(row_vector x, real y)x *= y is equivalent to x = x * y.
void operator*=(matrix x, real y)x *= y is equivalent to x = x * y.
void operator*=(row_vector x, matrix y)x *= y is equivalent to x = x * y.
void operator*=(matrix x, matrix y)x *= y is equivalent to x = x * y.