Examples for the change of base log formula
Copy these examples into a spreadsheet and adjust the ranges for your own data.
LOG syntax pattern
=LOG(number, [base])Use this LOG pattern as the starting point for your spreadsheet formula.
LOG in a worksheet
=LOG(A2, [base])Returns the logarithm of number to the given base. If base is omitted, it is assumed to be 10.
When to use LOG
Use LOG when you need to return the logarithm of number to the given base. LOG if base is omitted, it is assumed to be 10.
- Build totals, rounded metrics, and numeric calculations.
- Clean up numeric inputs before analysis.
How LOG works in Quadratic
In Quadratic, LOG follows the syntax LOG(number, [base]). The function works inside Quadratic formulas and can be combined with spreadsheet ranges, tables, and other formulas.
Common LOG mistakes
Most LOG issues come from mismatched argument types, ranges that do not cover the intended data, or optional parameters being omitted when the default behavior is not what you expected.
- Check each required parameter before copying the formula across a sheet.
- Confirm that ranges line up with the rows or columns you intend to analyze.
- Use Quadratic AI to explain or debug the formula when the result looks wrong.