Cos Graph (y = cos x) | Interactive Cosine Curve

Cos Graph (y = cos x)

This page shows the cosine graph for y = cos(x). Use the controls to adjust amplitude and frequency, and switch between radians and degrees.

Current function: y = 1 · cos(1x)

Key facts: cos(0) = 1, period is 2π / B (radians) or 360° / B (degrees), and amplitude is |A|.

How to read the cosine graph

  • The horizontal axis is the input x (radians or degrees).
  • The vertical axis is the output y, which ranges from -A to +A.
  • One full wave repeats every 2π (or 360°) when B = 1.

Disclaimer: This graph is provided for general educational reference only. Visual output may vary slightly due to screen size, rounding, or browser rendering. This content does not replace professional educational, engineering, or technical advice.