How to use the LOG10 functions in Excel. Enter your data or use existing data. Type into the cell where you want to place the result =LOG10(A4).; Press Enter to see the result.

Pickett, Inc., was a slide rule manufacturer that started in Chicago in 1943, shifted most of its operations to Alhambra, Calif., in 1946, and moved to Santa Barbara, Calif., in 1964. Maurice L.