Real numbers can use notation {system of notation} {notation system}. For example, at positions, number-system base has powers. For example, 1234 = 1 * 10^3 + 2 * 10^2 + 3 * 10^1 + 4 * 10^0.
Positions around decimal point can correspond to powers of number-system base {positional notation}|. For example, 1234 = 1 * 10^3 + 2 * 10^2 + 3 * 10^1 + 4 * 10^0.
Large or small numbers can use notation {scientific notation}| with mantissa between 1 and 10 times number 10 to characteristic power. For example, 120,000,000 = 1.2 x 10^8.
Scientific notation uses mantissa between 1 and 10 times number 10 to power {characteristic, number}.
Scientific notation uses numbers between 1 and 10 {mantissa} times 10 to characteristic powers. Mantissa has number of significant digits.
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Date Modified: 2022.0225