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[CodeFactor] Apply fixes to commit 9697fac

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codefactor-io
2026-03-14 05:03:08 +00:00
parent 9697facfb4
commit e35ff7fa3f
164 changed files with 458 additions and 530 deletions
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lib/trends_FIR/qrma/Qrma.cs
+14 -14
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@@ -86,9 +86,9 @@ public sealed class Qrma : AbstractBase
// Faulhaber closed-form power sums (O(1))
double s1 = n * (n - 1.0) * 0.5; // Σx
double s2 = n * (n - 1.0) * (2.0 * n - 1.0) / 6.0; // Σx²
double s2 = n * (n - 1.0) * ((2.0 * n) - 1.0) / 6.0; // Σx²
double s3 = s1 * s1; // Σx³ = [N(N-1)/2]²
double s4 = n * (n - 1.0) * (2.0 * n - 1.0) * Math.FusedMultiplyAdd(3.0 * n, n - 1.0, -1.0) / 30.0; // Σx⁴
double s4 = n * (n - 1.0) * ((2.0 * n) - 1.0) * Math.FusedMultiplyAdd(3.0 * n, n - 1.0, -1.0) / 30.0; // Σx⁴
// Cross-products in O(N)
double r0 = 0, r1 = 0, r2 = 0;
@@ -109,9 +109,9 @@ public sealed class Qrma : AbstractBase
// [ S2 S3 S4 ] [c] [r2]
// Cramer's rule: det of coefficient matrix
double det = Math.FusedMultiplyAdd(n, s2 * s4 - s3 * s3,
Math.FusedMultiplyAdd(-s1, s1 * s4 - s3 * s2,
s2 * (s1 * s3 - s2 * s2)));
double det = Math.FusedMultiplyAdd(n, (s2 * s4) - (s3 * s3),
Math.FusedMultiplyAdd(-s1, (s1 * s4) - (s3 * s2),
s2 * ((s1 * s3) - (s2 * s2))));
if (Math.Abs(det) < 1e-20)
{
@@ -121,19 +121,19 @@ public sealed class Qrma : AbstractBase
double invDet = 1.0 / det;
// det_a: replace column 0 with [r0, r1, r2]
double detA = Math.FusedMultiplyAdd(r0, s2 * s4 - s3 * s3,
Math.FusedMultiplyAdd(-s1, r1 * s4 - r2 * s3,
s2 * (r1 * s3 - r2 * s2)));
double detA = Math.FusedMultiplyAdd(r0, (s2 * s4) - (s3 * s3),
Math.FusedMultiplyAdd(-s1, (r1 * s4) - (r2 * s3),
s2 * ((r1 * s3) - (r2 * s2))));
// det_b: replace column 1 with [r0, r1, r2]
double detB = Math.FusedMultiplyAdd(n, r1 * s4 - r2 * s3,
Math.FusedMultiplyAdd(-r0, s1 * s4 - s3 * s2,
s2 * (s1 * r2 - s2 * r1)));
double detB = Math.FusedMultiplyAdd(n, (r1 * s4) - (r2 * s3),
Math.FusedMultiplyAdd(-r0, (s1 * s4) - (s3 * s2),
s2 * ((s1 * r2) - (s2 * r1))));
// det_c: replace column 2 with [r0, r1, r2]
double detC = Math.FusedMultiplyAdd(n, s2 * r2 - s3 * r1,
Math.FusedMultiplyAdd(-s1, s1 * r2 - s2 * r1,
r0 * (s1 * s3 - s2 * s2)));
double detC = Math.FusedMultiplyAdd(n, (s2 * r2) - (s3 * r1),
Math.FusedMultiplyAdd(-s1, (s1 * r2) - (s2 * r1),
r0 * ((s1 * s3) - (s2 * s2))));
double a = detA * invDet;
double b = detB * invDet;