Tan Function

Returns the tangent of an angle.

Syntax

Tan(angle)

Remarks

The argument angle can be any valid numeric expression measured in radians.

Tan takes an angle and returns the ratio of two sides of a right triangle. The ratio is the length of the side opposite an angle divided by the length of the side adjacent to the angle.

Tan returns a Double.  If the return value is too large, an Overflow error occurs.

To convert degrees to radians, multiply degrees by Pi/180.  To convert radians to degrees, multiply radians by 180/Pi.  Pi is approximately 3.141593.

Atn Function

Cos Function

Sin Function

Math Functions

Derived Math Functions

Tan Function Example

The example uses Tan to calculate the tangent of an angle with a user-specified number of degrees.  To try this example, paste the code into the Declarations section of a form.  Then press F5 and click the form.

Sub Form_Click ()

Dim Degrees, Msg, Pi, Radians               ' Declare variables.

Pi = 4 * Atn(1)                             ' Calculate Pi.

Degrees = InputBox("Enter an angle in degrees.")  ' Get user input.