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# \$tan

Calculates the tangent of a number.

\$tan(number)

### Parameters

 number a number or an expression that evaluates to a number

### Return Value

Number, with the same number of decimal places as number. Ensure that you specify enough decimal places in your equation to ensure a sufficiently granular result. Unusual results such as -0 are an indication that the number of decimal places needs to be increased. For example, if you enter

\$tan(3)

without any decimal points, you receive the result

-0

However, if you enter

\$tan(3.0000)

you receive the result

-0.1425

### Comments

The value returned by this function has the same number of decimal places as number.

### Example

let var1 = \$tan(0)
let var1 = 3.14
let var2 = \$tan(0.50*var1)

See Also

\$atan

\$cos

\$sin

\$tanh

About Functional Expressions

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