#### Double Coercion

DOUBLE(<Expression>) - Coerces value of expression to type double

DOUBLE(4) | Evaluates to 4.0
DOUBLE(4.5) | Evaluates to 4.5
DOUBLE("A String") | Evaluates to 0.0
DOUBLE("3.5") | Evaluates to 3.5
DOUBLE("3.5 inches") | Evaluates to 3.5
DOUBLE("The circle measures 3.5 inches in diameter ") | Evaluates to 0.0
DOUBLE(MPOINT(0,0,1)) | Evaluates to 1.0
DOUBLE(MPOINT(3,4,5)) | Evaluates to 7.0711