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--- cubloc:log10:index [2026/02/16 05:48] – created - external edit 127.0.0.1
+++ cubloc:log10:index [2026/02/20 15:37] (current) – external edit 127.0.0.1
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 ====== Log10 ======
-Return logarithm base 10 of a value.
+The **Log10** function returns the common logarithm (base 10) of a numeric value. It is frequently used in engineering units like decibels (dB), pH levels, or any system where data scales by powers of 10.
+For the best precision, use the ''Single'' data type. **Note:** Similar to the natural log, the input value **B** must be greater than zero ($B > 0$).
+Example
 <code xbasic>
-A=Log10 B
+Dim A As Single
+Dim B As Single
+B = 100.0
+A = Log10(B)    ' Returns 2.0 (because 10^2 = 100)
 </code>
+==== Explanation: ====
+  * **B**: A positive numeric value ($B > 0$).
+  * **Log10 B**: Calculates the base-10 logarithm.
+  * **A**: Stores the result.
 See also [[:cubloc:log:|Log]]
 [[cubloc:index#system_library:|Go CUBLOC home]]