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Better module loading.

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Nitload
2026-03-04 00:51:29 +08:00
parent 7533e15fc7
commit 7e970352ab
21 changed files with 757 additions and 529 deletions
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StgSharp.Mathematics/Numeric/Scalar/Factorial.cs
+63 -64
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@@ -1,68 +1,67 @@
//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="Factorial"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
namespace StgSharp.Mathematics
{
public static partial class Scalar
{
private static readonly uint[] factorialResult = [
1,
1,
2,
6,
24,
120,
720,
5040,
40320,
362880,
3628800,
39916800,
479001600
];
public static unsafe ulong Factorial(int n)
{
ArgumentOutOfRangeException.ThrowIfLessThan(n, 0);
if (n < 13) {
return factorialResult[n];
}
if (n < 30) {
return NativeIntrinsic.Context.factorial_simd(n);
}
//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="Factorial"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
namespace StgSharp.Mathematics
{
public static partial class Scalar
{
private static readonly uint[] factorialResult = [
1,
1,
2,
6,
24,
120,
720,
5040,
40320,
362880,
3628800,
39916800,
479001600];
public static unsafe ulong Factorial(int n)
{
ArgumentOutOfRangeException.ThrowIfLessThan(n, 0);
if (n < 13) {
return factorialResult[n];
}
if (n < 30) {
return MathematicsModule.GlobalContext.factorial_simd(n);
}
double
dn = n,
stir = Sqrt(2 * PiDouble * dn) * Pow(dn / EDouble, dn),
correction = Exp(1 / (12 * dn));
return (ulong)(stir * correction);
}
}
correction = Exp(1 / (12 * dn));
return (ulong)(stir * correction);
}
}
}