Trigonometric Functions Calculator (Radians)

Compute sin, cos, tan, csc, sec and cot from an angle in radians, with a degree conversion and a unit circle diagram.

Input

Enter an angle theta in radians to compute sin, cos, tan, csc, sec, cot and the degree value.

Angle theta (radians)

Example: pi over 6 is about 0.5235987756, pi over 4 is about 0.7853981634

sin theta

0.5

cos theta

0.8660254

tan theta

0.57735027

csc theta

sec theta

1.15470054

cot theta

1.73205081

In degrees

30 deg

Radians

0.52359878

Unit circle point (cos theta, sin theta)

(0.8660254, 0.5)

csc, sec, cot and tan are undefined at angles where the denominator becomes zero.

The angle theta is entered in radians. For example pi over 6 is about 0.5235987756, pi over 4 is about 0.7853981634, pi over 3 is about 1.0471975512 and pi over 2 is about 1.5707963268.
sin theta and cos theta match the y and x coordinates of the point on the unit circle. tan theta equals sin theta divided by cos theta.
csc theta, sec theta and cot theta are the reciprocals of sin theta, cos theta and tan theta. They are undefined where the denominator becomes zero.
tan theta and sec theta are undefined where cos theta is zero, at odd multiples of pi over 2. csc theta and cot theta are undefined where sin theta is zero, at integer multiples of pi.
The degree value is found from theta multiplied by 180 divided by pi.

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