- Arctan - Math. net
While we can find the value for arctangent for any x value in the interval [-∞, ∞], there are certain angles that are used frequently in trigonometry (0°, 30°, 45°, 60°, 90°, and their multiples and radian equivalents) whose tangent and arctangent values may be worth memorizing
- Arctan (x) Calculator | Inverse tangent calculator
Inverse tangent calculator Enter the tangent value, select degrees (°) or radians (rad) and press the = button
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