repl.txt (585B)
1 2 {{alias}}( x ) 3 Computes the reciprocal square root of a double-precision floating-point 4 number. 5 6 For `x < 0`, the reciprocal square root is not defined. 7 8 Parameters 9 ---------- 10 x: number 11 Input value. 12 13 Returns 14 ------- 15 y: number 16 Reciprocal square root. 17 18 Examples 19 -------- 20 > var y = {{alias}}( 4.0 ) 21 0.5 22 > y = {{alias}}( 100.0 ) 23 0.1 24 > y = {{alias}}( 0.0 ) 25 Infinity 26 > y = {{alias}}( Infinity ) 27 0.0 28 > y = {{alias}}( -4.0 ) 29 NaN 30 > y = {{alias}}( NaN ) 31 NaN 32 33 See Also 34 -------- 35