Appendix: Built-in Scripting Language > Logarithmic functions >

Log10

Calculates the log base 10 of numValue.

Function Group Execution Windows Embedded Thin Client
Log10 Logarithmic Synchronous Supported Supported Supported

Syntax

Log10(numValue)
numValue
Integer or Real tag, from which the log base 10 is taken.

Returned value

Returns the value of log10( numValue ).

Note: If numValue has a negative value, then this function will return the value 0 and it will set the quality of the returned tag to BAD.

Examples

Tag Name Expression
Tag Log10( 1000 ) // Returned value = 3
Tag Log10( 43.05 ) // Returned value = 1.633973
Parent topic: Logarithmic functions
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