Trigonometric & Angle Calculator
Compute trigonometric functions (sin, cos, tan, sec, csc, cot) and inverse functions with unit circle visuals
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Calculate trigonometric values. Input angles in degrees or radians to solve equations and interact with a draggable unit circle SVG.
How to use
- Select your angle input mode (Degrees or Radians) and enter the value.
- Review the calculated outputs for sin, cos, tan, and their reciprocals.
- Drag the unit circle indicator or adjust input variables to inspect geometry changes.
FAQ
- Why is tangent undefined at 90 degrees?
- Tangent is defined as sine divided by cosine. Since cosine of 90 degrees is exactly 0, division by zero occurs, making the tangent undefined.