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tan(expr0) ⇒ number
The tan() function returns the tangent of the argument as a number. The argument is interpreted as an angle in radians.
Mathematically, tan() tends to when x tends to . In the Formulas question, the tan() function returns a numeric value of ±1.633E+16 at these points.
Use the calculator at the top right of the window to find the tangent of a number. Click the [tan] key.