1. Plural of arctangent; the inverse trigonometric function that returns the angle whose tangent is a given number.
Usage: mathematics; Also called inverse tangent or tan⁻¹

Examples

• The arctangents of several values are listed in the trigonometry table.
• To find the angle, we calculated the arctangent of the ratio.
• The arctangent function is useful in converting rectangular coordinates to polar coordinates.
• Students learned how to compute arctangents using a scientific calculator.
• The arctangents of 0, 1, and −1 are 0°, 45°, and −45° respectively.