repl.txt (578B)
1 2 {{alias}}( x ) 3 Computes the principal square root of `1+x` minus one. 4 5 This function is more accurate than the obvious approach for small `x`. 6 7 Parameters 8 ---------- 9 x: number 10 Input value. 11 12 Returns 13 ------- 14 y: number 15 Square root of `1+x` minus one. 16 17 Examples 18 -------- 19 > var y = {{alias}}( 3.0 ) 20 1.0 21 > y = {{alias}}( 0.5 ) 22 ~0.225 23 > y = {{alias}}( 0.02 ) 24 ~0.01 25 > y = {{alias}}( -0.5 ) 26 ~-0.293 27 > y = {{alias}}( -1.1 ) 28 NaN 29 > y = {{alias}}( NaN ) 30 NaN 31 32 See Also 33 -------- 34