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Polar To Rectangular Function
Math Trig Complex Class

Public Function PolarToRectangular( _
    ByVal vX As Variant _
    ) As Variant

"Polar Coordinates To Rectangular"
Polar to rectangular conversion.
Convert two-dimensional polar coordinates (expressed in radians) to rectangular coordinates.

Examples: 
    ? PolarToRectangular("2|0")
     2
    ? PolarToRectangular("2|.5")
    1.75516512378075|0.958851077208406
    ? PolarToRectangular("2|1")
    1.08060461173628|1.68294196961579
    ? PolarToRectangular("2|1.5")
    0.141474403335406|1.99498997320811
    ? PolarToRectangular("2|2")
    -0.832293673094285|1.81859485365136
    ? PolarToRectangular("2|2.5")
    -1.60228723109387|1.19694428820791
    ? PolarToRectangular("2|3")
    -1.97998499320089|0.282240016119734
See also: 
    RectangularToPolar Function
vX: Complex number representing polar coordinates. The real part of the complex number represents the length of the vector, and the imaginary part represents the angle (measured in radians). Function returns a complex number where the real part represents the X-coordinate and the imaginary part represents the Y-coordinate in rectangular coordinates. Function returns Null if vX is Null or cannot be fixed up to a real or complex number (as defined by the ComplexStringToReals function). Complex numbers are represented within strings as "R|I" where R is the real part and I is the imaginary part.

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