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Refactor exact-zero guards and update mathematical notations across multiple classes to enhance clarity and prevent division by zero errors.

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This commit is contained in:
Miha Kralj
2026-02-16 22:30:30 -08:00
parent b63b9730e1
commit fa56e2b76d
10 changed files with 38 additions and 54 deletions
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lib/cycles/homod/Homod.cs
+2 -3
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@@ -18,7 +18,7 @@ namespace QuanTAlib;
/// 3. Homodyne mixing: multiply I/Q with their 1-bar delayed values
/// 4. Re = I*I[1] + Q*Q[1], Im = I*Q[1] - Q*I[1]
/// 5. Angle = atan2(Im, Re) gives instantaneous phase change
/// 6. Period = 2π / angle with clamping and smoothing
/// 6. Period = 2Ï€ / angle with clamping and smoothing
///
/// Properties:
/// - Returns smoothed dominant cycle period
@@ -321,8 +321,7 @@ public sealed class Homod : AbstractBase
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static double Atan2(double y, double x)
{
// skipcq: CS-R1077 - Exact-zero guard: both quadrature components zero means no signal; atan2(0,0) is undefined
if (y == 0.0 && x == 0.0)
if (y == 0.0 && x == 0.0) // skipcq: CS-R1077 - Exact-zero guard: both quadrature components zero means no signal; atan2(0,0) is undefined
{
return 0.0; // Return 0 instead of error for robustness
}