repl.txt (556B)
1 2 {{alias}}( x ) 3 Evaluates the trigamma function. 4 5 If `x` is `0` or a negative `integer`, the `function` returns `NaN`. 6 7 If provided `NaN`, the `function` returns `NaN`. 8 9 Parameters 10 ---------- 11 x: number 12 Input value. 13 14 Returns 15 ------- 16 y: number 17 Function value. 18 19 Examples 20 -------- 21 > var y = {{alias}}( -2.5 ) 22 ~9.539 23 > y = {{alias}}( 1.0 ) 24 ~1.645 25 > y = {{alias}}( 10.0 ) 26 ~0.105 27 > y = {{alias}}( NaN ) 28 NaN 29 > y = {{alias}}( -1.0 ) 30 NaN 31 32 See Also 33 -------- 34