In mathematics, change of base can mean any of several things:
- Changing numeral bases, such as converting from base 2 (binary) to base 10 (decimal). This is known as base conversion.
- The logarithmic change-of-base formula, one of the logarithmic identities used frequently in algebra and calculus.
- The method for changing between polynomial and normal bases, and similar transformations, for purposes of coding theory and cryptography.
- Construction of a fibred product of schemes, in algebraic geometry.
Famous quotes containing the words change and/or base:
“The law of God is a law of change, and ... when the Churches set themselves against change as such, they are setting themselves against the law of God.”
—George Bernard Shaw (1856–1950)
“What if it tempt you toward the flood, my lord,
Or to the dreadful summit of the cliff
That beetles o’er his base into the sea,
And there assume some other horrible form
Which might deprive your sovereignty of reason,
And draw you into madness?”
—William Shakespeare (1564–1616)