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Arctan Calculator to calculate arctan(x)
Inverse trigonometric functions - Wikipedia
Arctan Calculator - Math.net
Arctan Calculator
Arctan - Math.net
How to Calculate Arctan: A Comprehensive Guide
arctan - Wolfram|Alpha
Arctangent Explained Simply - Andrea Minini
What is the Arctan Function in Trigonometry? - GeeksforGeeks
Arctan - Definition and Formula, Use | Solved Examples - Toppr