method

atan2

v1_8_7_72 - Show latest stable - 0 notes - Class: Math

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atan2(p1, p2) public

Computes the arc tangent given y and x. Returns -PI..PI.

/*
 *  call-seq:
 *     Math.atan2(y, x)  => float
 *  
 *  Computes the arc tangent given <i>y</i> and <i>x</i>. Returns
 *  -PI..PI.
 *     
 */

static VALUE
math_atan2(obj, y, x)
    VALUE obj, x, y;
{
    Need_Float2(y, x);
    return rb_float_new(atan2(RFLOAT(y)->value, RFLOAT(x)->value));
}

atan2

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