#### Point Coercion

MPOINT(<Expression1>, <Expression2>, <Expression3>) - Coerces values of expressions to type point after coercing each expression to type double.

MPOINT( 1, 1, 1) | Evaluates to point 1.0,1.0,1.0
MPOINT( 1.1, 1.1, 1.1) | Evaluates to point 1.1, 1.1, 1.1
MPOINT("1", "1", "1") | Evaluates to point 1.0,1.0,1.0
MPOINT( 3, 4.5, "5.6") | Evaluates to point 3.0, 4.5, 5.6
MPOINT( MPOINT(1, 0, 0), MPOINT(0,1,0), MPOINT(3,4,5) ) | Evaluates to 1.0, 1.0, 7.0711