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daily update on 2024.03.18 by itload youmu

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YoumuLiu
2024-03-19 02:41:04 +08:00
parent 15bf989285
commit 0c50c6282e
200 changed files with 7663 additions and 3455 deletions
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源代码/StgSharp/Math/Scalar/Sin.cs
+49 -16
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@@ -1,11 +1,56 @@
using System.Net.NetworkInformation;
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// file="Sin.cs"
// 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.Net.NetworkInformation;
namespace StgSharp.Math
{
public static partial class Scaler
{
public const float Pi = 3.1415926f;
private static readonly float[] cosData =
{
1f, 0.987688341014302f, 0.951056517951169f, 0.891006527837756f, 0.809017000674805f,
0.707106790659974f, 0.587785265298989f, 0.453990516451646f, 0.309017014761716f, 0.156434488858737f,
2.67948965850537E-08f, -0.156434435928723f, -0.309016963794794f, -0.453990468702791f, -0.587785221943935f,
-0.707106752766267f, -0.809016969175515f, -0.891006503508499f, -0.951056501391011f, -0.98768833263101f,
-0.999999999999999f, -0.987688349397591f, -0.951056534511324f, -0.891006552167012f, -0.809017032174094f,
-0.707106828553679f, -0.587785308654041f, -0.4539905642005f, -0.309017065728638f, -0.156434541788751f,
-8.03846893110719E-08f, 0.156434382998709f, 0.309016912827872f, 0.453990420953934f, 0.58778517858888f,
0.707106714872559f, 0.809016937676222f, 0.891006479179238f, 0.951056484830851f, 0.987688324247716f,
};
private static readonly float[] sinData =
{
0f, 0.15643446239373f, 0.309016989278255f, 0.453990492577218f, 0.587785243621462f,
@@ -18,19 +63,6 @@ namespace StgSharp.Math
-0.70710684750053f, -0.587785330331566f, -0.453990588074927f, -0.309017091212098f, -0.156434568253757f,
};
private static readonly float[] cosData =
{
1f, 0.987688341014302f, 0.951056517951169f, 0.891006527837756f, 0.809017000674805f,
0.707106790659974f, 0.587785265298989f, 0.453990516451646f, 0.309017014761716f, 0.156434488858737f,
2.67948965850537E-08f, -0.156434435928723f, -0.309016963794794f, -0.453990468702791f, -0.587785221943935f,
-0.707106752766267f, -0.809016969175515f, -0.891006503508499f, -0.951056501391011f, -0.98768833263101f,
-0.999999999999999f, -0.987688349397591f, -0.951056534511324f, -0.891006552167012f, -0.809017032174094f,
-0.707106828553679f, -0.587785308654041f, -0.4539905642005f, -0.309017065728638f, -0.156434541788751f,
-8.03846893110719E-08f, 0.156434382998709f, 0.309016912827872f, 0.453990420953934f, 0.58778517858888f,
0.707106714872559f, 0.809016937676222f, 0.891006479179238f, 0.951056484830851f, 0.987688324247716f,
};
public static unsafe float Sin(float x)
@@ -45,8 +77,9 @@ namespace StgSharp.Math
float refer2 = refer * refer;
return sinData[a] * (1 - 0.0123370055f * refer2 + 2.536695709e-5f * refer2 * refer2)
+ cosData[a] * (0.1570796327f * refer - 6.459640975e-4f * refer * refer2);
return (sinData[a] * ((1 - (0.0123370055f * refer2)) + (2.536695709e-5f * refer2 * refer2)))
+ (cosData[a] * ((0.1570796327f * refer) - (6.459640975e-4f * refer * refer2)));
}
}
}