f128

f128 - 64.64 Fixed-Point Arithmetic

High-precision fixed-point numbers using 128-bit representation.

Format

The f128 format uses 64 bits for the integer part and 64 bits for the fractional part, providing: - Range: approximately ±9.2 × 10¹⁸ - Precision: approximately 5 × 10⁻²⁰

Core Type

The Fixed struct represents a signed fixed-point number:

• mag: The absolute magnitude scaled by 2⁶⁴
• sign: true for negative, false for positive

Modules

• types - Core types (Fixed, Vec2, Vec3, Vec4)
• math - Mathematical operations
  • ops - Basic arithmetic, power, exponential, logarithms
  • trig - Trigonometric functions
  • hyp - Hyperbolic functions
  • comp - Comparison utilities
• procgen - Procedural generation (noise, random)

Example

use cairo_fp::f128::types::fixed::FixedTrait;
use cairo_fp::f128::math::ops;

let x = FixedTrait::new_unscaled(2, false);  // 2.0
let result = ops::exp(x);  // e² ≈ 7.389

Fully qualified path: cairo_fp::f128

Modules