BinaryFixedPoint

type BinaryFixedPoint<TSignedness, TTotalBits, TFractionalBits> = object;

A fixed-point number whose scale is a power of 2. The stored raw bigint represents the mathematical value raw / 2 ** fractionalBits.

Binary fixed-point is the fastest fractional representation to compute with — rescaling is a bit shift — so it is the preferred choice for audio samples, graphics, probabilities, and any other quantity where performance matters and the scale does not need to align with decimal digits.

Example

A 16-bit signed Q1.15 audio sample:

type AudioSample = BinaryFixedPoint<'signed', 16, 15>;

See

• DecimalFixedPoint
• Signedness

Type Parameters

Properties

fractionalBits

readonly fractionalBits: TFractionalBits;

kind

readonly kind: "binaryFixedPoint";

raw

readonly raw: bigint;

signedness

readonly signedness: TSignedness;

totalBits

readonly totalBits: TTotalBits;