--- title: "Math commands" canonical: "https://docs.cuesystem.com/space/CVCHELP/512327770/Math%20commands" format: markdown --- > Macro (toc) --- # ACos This function is the inverse of the cosinus function. It returns angle (in degrees, 0 <= angle < 360) for which Cos (angle) is equal to x. All angles are measured in angular degrees. The positive direction is counter-clockwise. The X-axis goes from left to right. Y-axis goes from bottom to up. #### Syntax ```visualbasic Function ACos(x As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on. #### Return value* * [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the angle. # ASin This function is the inverse of the sinus function. It returns angle (in degrees, 0 <= angle < 360) for which Sin (angle) is equal to x. All angles are measured in angular degrees. The positive direction is counter-clockwise. The X-axis goes from left to right. Y-axis goes from bottom to up. #### Syntax ```visualbasic Function ASin(x As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on. #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the angle. # ATan This function is the inverse of the tangent function. It returns angle (in degrees, 0 <= angle < 360) for which Tan (angle) is equal to x. All angles are measured in angular degrees. The positive direction is counter-clockwise. The X-axis goes from left to right. Y-axis goes from bottom to up. #### Syntax ```visualbasic Function ATan(x As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on. #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the angle. # ATan2 This function returns the angle of the two-dimensional vector (in degrees), which coordinates are x, and y. All angles are measured in angular degrees. The positive direction is counter-clockwise. The X-axis goes from left to right. Y-axis goes from bottom to up. #### Syntax ```visualbasic Function ATan2( x As Double, y As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on, the vector's coordinate x. y [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on, the vector's coordinate y. #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the angle. # Cos The function returns the cosine of angle x (in degrees). All angles are measured in angular degrees. The positive direction is counter-clockwise. The X-axis goes from left to right. Y-axis goes from bottom to up. #### Syntax ```visualbasic Function Cos(x As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on. #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the cosine of the angle. # GetNaN The function returns not a number (NaN) floating-point value. #### Syntax ```visualbasic Function GetNaN() As Double ``` #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) Not a number floating-point value. # IsNaN The function checks a given floating-point value for not a number (NaN). #### Syntax ```visualbasic Function IsNaN(x As Double) As Boolean ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) floating-point value. #### Return value [Boolean](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Boolean) It is True if the parameter is not a number, False otherwise. # Ln This function returns the natural logarithm of a number x. #### Syntax ```visualbasic Function Ln(x As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on. #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the natural logarithm. # Log This function returns the decimal logarithm of a number x. #### Syntax ```visualbasic Function Log(x As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on. #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the decimal logarithm. # Sin The function returns the sine of angle x (in degrees). All angles are measured in angular degrees. The positive direction is counter-clockwise. The X-axis goes from left to right. Y-axis goes from bottom to up. #### Syntax ```visualbasic Function Sin(x As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on. #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the sine of the angle. # Tan The function returns the tangent of angle x (in degrees). All angles are measured in angular degrees. The positive direction is counter-clockwise. The X-axis goes from left to right. Y-axis goes from bottom to up. #### Syntax ```visualbasic Function Tan(x As Double) As Double ``` #### Parameters x [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is a value to be counted on. #### Return value [Double](/wiki/spaces/CVCHELP/pages/495058958/Data+types#Double) It is the tangent of an angle. # **_E** Constant _E (base of the natural logarithm, Euler’s number) is defined in the firmware of units. #### Syntax ```visualbasic Const _E As Double := 2.7182818284590452353602874713527 ``` # _Pi Constant _Pi (circular constant or Ludolph's number) is defined in the firmware of units. #### Syntax ```visualbasic Const _Pi As Double := 3.1415926535897932384626433832795 ```