Tan-1 Calculator

Calculates the inverse tangent value (arctan) for any given numeric input, returning the angle measure in radians or degrees depending on user selection. This utility performs a fundamental operation within trigonometry by determining the angle whose tangent is equal to the specified ratio. Users simply enter the numerical value derived from a right triangle's opposite and adjacent sides, and the calculator outputs the corresponding angle that satisfies the trigonometric relationship. Students studying pre-calculus or advanced mathematics utilize this resource for homework assignments and academic review. Professionals in engineering or physics may use it when solving complex equations that involve inverse trig functions, such as those found in circuit analysis or vector decomposition.