repl.txt (635B)
1 2 {{alias}}( x, b ) 3 Computes the base `b` logarithm of `x`. 4 5 For negative `b` or `x`, the function returns `NaN`. 6 7 Parameters 8 ---------- 9 x: number 10 Input value. 11 12 b: number 13 Base. 14 15 Returns 16 ------- 17 y: number 18 Logarithm (base `b`). 19 20 Examples 21 -------- 22 > var y = {{alias}}( 100.0, 10.0 ) 23 2.0 24 > y = {{alias}}( 16.0, 2.0 ) 25 4.0 26 > y = {{alias}}( 5.0, 1.0 ) 27 Infinity 28 > y = {{alias}}( NaN, 2.0 ) 29 NaN 30 > y = {{alias}}( 1.0, NaN ) 31 NaN 32 > y = {{alias}}( -4.0, 2.0 ) 33 NaN 34 > y = {{alias}}( 4.0, -2.0 ) 35 NaN 36 37 See Also 38 -------- 39