Turtle and Observer Command

atan numerator denominator

Trigonometric function. Returns the arctangent of the specified number numerator/denominator. All angles returned are in degrees.

Examples:
atan 5 6 returns 39.90557, the arctangent of 5/6.

Note: You may specify the quadrant of your returned angle by using negative arguments.

Related commands:
cos sin tan acos asin