TAN

TAN(number)

Returns the tangent of an angle (Double).

number

The number you want the tangent of in radians (Double).

REMARKS

* This function takes an angle and returns the ratio of two sides of a right angled triangle.
* The tangent ratio is the length of the side opposite the angle divided by the length of the side adjacent to the angle.
* If your argument is in degrees, multiple it by PI/180 to convert it to radians.
* If your argument is in radians, multiply it by 180/PI to convert it to degrees.
* The reciprocal of this function (1/TAN) is called the cotangent.
* You can use the ATN function to return the inverse of this function (arc-tangent).
* You can use the COS function to return the cosine of a number.
* You can use the SIN function to return the sine of a number.
* The equivalent Excel function is Application.WorksheetFunction.TAN
* The equivalent .NET function is System.Math.Tan
* For more information, refer to the [[Trigonometry > Tan Function]] page.
* For the Microsoft documentation refer to learn.microsoft.com

Debug.Print Tan(0)             '= 0  
Debug.Print Tan(0.5)           '= 0.546  
Debug.Print Tan(0.785)         '= 1  
Debug.Print Tan(1)             '= 1.557  
Debug.Print Tan(-1)            '=  
Debug.Print TypeName(Tan(20))  '= "Double"