In mathematics, the logarithm of a number is the exponent by which another fixed value, the base, must be raised to produce that number. For example, the logarithm of 1000 to base 10 is 3, because 1000 …

Natural logarithm is a logarithm to the base e: When e constant is the number: or. See: Natural logarithm. The inverse logarithm (or anti logarithm) is calculated by raising the base b to the …

This free log calculator solves for the unknown portions of a logarithmic expression using base e, 2, 10, or any other desired base.

In its simplest form, a logarithm answers the question: How many of one number multiply together to make another number? Example: How many 2 s multiply together to make 8? Answer: 2 × 2 × 2 = 8, …

All logarithm rules in one place: product, quotient, power, change of base, natural log (ln), and common log. With identities, solving tips, and examples.

Logarithms can be used to make calculations easier. For example, two numbers can be multiplied just by using a logarithm table and adding. These are often known as logarithmic properties, which are …

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May 16, 2007 · We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college …

2 days ago · The meaning of LOG is a usually bulky piece or length of a cut or fallen tree; especially : a length of a tree trunk ready for sawing and over six feet (1.8 meters) long.

Jul 24, 2026 · Expressed mathematically, x is the logarithm of n to the base b if bx = n, in which case one writes x = log b n. For example, 2 3 = 8; therefore, 3 is the logarithm of 8 to base 2, or 3 = log 2 8.