Cosine Cosine function calculator

x:
=
Cotangent (x):

y=cosine(x) Graph

X
(deg)		 X
(Rad)		 Y=cosine(X)
180 ̊ π -1
150 ̊ 5π/6 -0.866025
135 ̊ 3π/4 -0.707107
120 ̊ 2π/3 -0.5
90 ̊ π/2 0
60 ̊ π/3 0.5
45 ̊ π/4 0.707107
30 ̊ π/6 0.866025
0 ̊ 0 1

What is a Cosine Cosine Function Calculator?

A Cosine Cosine Function Calculator is a tool that computes values related to the function cos(cos(x)). This is different from a standard cosine calculator because it evaluates the cosine function twice—first finding cos(x) and then taking the cosine of that result.

Why Use a Cosine Cosine Function Calculator?

  1. Mathematical Analysis – Used in advanced calculus and trigonometry problems.
  2. Physics & Engineering – Appears in wave functions, oscillations, and certain approximations.
  3. Curiosity & Graphing – Used for exploring unique properties of nested trigonometric functions.

How Does It Work?

The calculator follows these steps:

  1. Take the input x (in degrees or radians).
  2. Compute cos(x).
  3. Compute cos(cos(x)).
  4. Display the final result.

Example:
If x = 60°,

  • cos(60°) = 0.5
  • cos(0.5) ≈ 0.8776

When Do You Need It?

  • When solving nested trigonometric equations.
  • When graphing complex trigonometric behaviors.
  • In physics and engineering problems involving harmonic motion.