repl.txt (737B)
1 2 {{alias}}( y, x ) 3 Computes the angle in the plane (in radians) between the positive x-axis and 4 the ray from (0,0) to the point (x,y). 5 6 Parameters 7 ---------- 8 y: number 9 Coordinate along y-axis. 10 11 x: number 12 Coordinate along x-axis. 13 14 Returns 15 ------- 16 out: number 17 Angle (in radians). 18 19 Examples 20 -------- 21 > var v = {{alias}}( 2.0, 2.0 ) 22 ~0.785 23 > v = {{alias}}( 6.0, 2.0 ) 24 ~1.249 25 > v = {{alias}}( -1.0, -1.0 ) 26 ~-2.356 27 > v = {{alias}}( 3.0, 0.0 ) 28 ~1.571 29 > v = {{alias}}( -2.0, 0.0 ) 30 ~-1.571 31 > v = {{alias}}( 0.0, 0.0 ) 32 0.0 33 > v = {{alias}}( 3.0, NaN ) 34 NaN 35 > v = {{alias}}( NaN, 2.0 ) 36 NaN 37 38 See Also 39 -------- 40