Arccos (Inverse Cosine) Calculator - Calculate the angle (in degrees or radians) whose cosine equals a given value. Includes principal value range (0° to 180° / 0 to π) and general solutions. New

Arcsin (Inverse Sine) Calculator - Calculate the angle (in degrees or radians) whose sine equals a given value. Includes principal value range (−90° to 90° / −π/2 to π/2) and general solutions. New

Arctan2 Calculator - Calculate the angle between the positive x-axis and a point (x, y). Essential for programming and robotics as it correctly determines the angle in all four quadrants. New

Arctan (Inverse Tangent) Calculator - Calculate the angle (in degrees or radians) whose tangent equals a given value. Shows the principal value range (−90° to 90° / −π/2 to π/2), general solutions, and supports 1–1000 decimal places. New

High-Precision Cosine Calculator - Calculate the cosine of any angle with adjustable precision from 1 to 1000 decimal places! Features step-by-step solutions, unit circle visualization, and true arbitrary-precision arithmetic using mpmath. New

Cosecant/Secant/Cotangent Calculator - Calculate the reciprocal trigonometric functions with adjustable precision from 1 to 1000 decimal places: Cosecant (1/sin), Secant (1/cos), and Cotangent (1/tan). Clear domain warnings, step‑by‑step explanation, and unit circle visualization. New

Decimal Degrees to DMS Converter - Convert angles from decimal degrees (e.g., 30.263889°) to Degrees, Minutes, Seconds (DMS) format (e.g., 30° 15' 50"). Supports high precision and provides step-by-step conversion explanations. New

DMS to Decimal Degrees Converter - Convert angles from Degrees, Minutes, Seconds (DMS) format (e.g., 30° 15' 50") to decimal degrees (e.g., 30.2639°). Supports multiple input formats and provides step-by-step conversion explanations. New

High-Precision Hyperbolic Functions Calculator - Calculate hyperbolic functions (sinh, cosh, tanh) and their inverses (asinh, acosh, atanh) with adjustable precision from 1 to 1000 decimal places! Features step-by-step solutions and true arbitrary-precision arithmetic using mpmath. New

Interactive Unit Circle Visualizer - A dynamic visualization of the Unit Circle. Understand the relationship between angles (degrees/radians) and the corresponding sin, cos, and tan values at key points. Features interactive controls and displays all six trigonometric function values. New

Law of Cosines Calculator - Use the Law of Cosines to find unknown sides or angles in a triangle. Supports SAS (Side-Angle-Side) and SSS (Side-Side-Side) cases. Get step-by-step solutions with detailed explanations and interactive triangle visualization! New

Law of Sines Calculator - Use the Law of Sines to find unknown sides or angles in a triangle. Supports ASA (Angle-Side-Angle), AAS (Angle-Angle-Side), and SSA (Side-Side-Angle) cases with ambiguous case detection. Get step-by-step solutions with detailed explanations! New

Right Triangle Calculator - Solve right triangles by entering any two known values (sides or angles). Calculate all missing sides, angles, area, and perimeter with detailed step-by-step explanations and visual diagrams. New

High-Precision Sine Calculator - Calculate the sine of any angle with adjustable precision from 1 to 1000 decimal places! Features step-by-step solutions, unit circle visualization, and true arbitrary-precision arithmetic using mpmath. New

High-Precision Tangent Calculator - Calculate the tangent of any angle with adjustable precision from 1 to 1000 decimal places. Supports degrees and radians, shows step-by-step solutions, and clearly flags vertical asymptotes (e.g., 90° + k·180°). New

Trigonometric Function Grapher - Graph sine, cosine, and tangent functions with customizable parameters! Adjust amplitude, period, phase shift, and vertical shift (y = A sin(B(x-C)) + D) to visualize trigonometric functions interactively. Perfect for students, educators, and math enthusiasts. New

Trigonometric Identities Calculator - Calculate unknown trigonometric function values using fundamental identities (Pythagorean, Sum/Difference, Double/Half Angle) when one value is known. Perfect for learning and verifying trigonometric relationships! New