\cos - LaTeX cosine command

\cos

Renderer support

Package	MathJax	KaTeX	XeTeX
`base`	MathJax: Full	KaTeX: Full	XeTeX: Full
`physics`	MathJax: Full	KaTeX: Full	XeTeX: Full

Syntax#

\cos

Takes no arguments. In base. Reading argspecs

\coso[a]optional math contentd()(b)optional math content

Argspec o d() — two optional arguments. In physics. Reading argspecs

\cos\theta

Write the power on the operator: \cos^2 x, not \cos x^2 unless you mean cos(x^2).

\cos^2 x + \sin^2 x = 1

\arccos x

physics

\cos x

physics

\cos[2](x)

Package	Signature	Allowed mode	Notes
`base`		math	Used for cosine in trigonometric formulas, identities, and Fourier-style calculations
`physics`	`o d()`	math	Used for cosine notation, including bracketed powers such as \cos[2](x).

TeXForm parses this entry as prefix syntax; the package determines its argument specification.

Expand physics power and auto-sized parenthesis arguments of standard named functions.

\sin(#1) \sin\left(#1\right)

`base`
Input	Case	MathJax	KaTeX	XeTeX
`\cos`	Positive · baseline	Pass	Pass	Pass

`physics`
Input	Case	MathJax	KaTeX	XeTeX
`\cos`	Positive · baseline	Pass	Pass	Pass
`\cos[a]`	Positive · vary:o[0]	Pass	Pass	Pass
`\cos (a)`	Positive · vary:d[1]	Pass	Pass	Pass
`\cos[a](b)`	Positive · maximal	Pass	Pass	Pass