4. Logarithms to Base 10

by M. Bourne


Logarithms to Base 10 were used extensively for calculation up until the calculator was adopted in the 19070s and 80s. The concept of logarithms is still very important in many fields of science and engineering. One example is acoustics.

log

Our calculators allow us to use logarithms to base 10. These are called common logarithms ("log" on a calculator). We normally do not include the 10 when we write logarithms to base 10.

We write

log x to mean log10 x.

Examples

1. Find the logarithm of 5 623 to base 10. Write this in exponential form.

2. Find the antilogarithm of -6.9788

Didn't find what you are looking for on this page? Try search:

Online Algebra Solver

This algebra solver can solve a wide range of math problems. (Please be patient while it loads.)

Online algebra solver - can solve your math problems step-by-step

Math Lessons on DVD

get MathTutorDVDs

Easy to understand math lessons on DVD. See samples before you commit.

More info: Math videos

Ready for a break?

shadow factory

Play a math game.

(Well, not really a math game, but each game was made using math...)

The IntMath Newsletter

Sign up for the free IntMath Newsletter. Get math study tips, information, news and updates each fortnight. Join thousands of satisfied students, teachers and parents!

Given name: * required

Family name:

email: * required

See the Interactive Mathematics spam guarantee.

Share IntMath!

Short URL for this Page

Save typing! You can use this URL to reach this page:

intmath.com/log10