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Inside Macintosh: Operating System Utilities /
Chapter 3 - Mathematical and Logical Utilities / Mathematical and Logical Utilities Reference
Routines / Performing Calculations on Fixed-Point Numbers


You can use the FracSqrt function to obtain the square root of a Fract number.

FUNCTION FracSqrt (x: Fract): Fract;
The Fract number to obtain a square root of. This parameter is interpreted as being unsigned in the range 0 through 4 - 2-30, inclusive. That is, the bit of a Fract number that ordinarily has weight -2 is instead interpreted as having weight 2.
The FracSqrt function returns the square root of the Fract number you supply in the x parameter. The result is unsigned in the range 0 through 2, inclusive.

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6 JUL 1996

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