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TanPi.cs
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TanPi.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using BenchmarkDotNet.Attributes;
namespace System.MathBenchmarks
{
public partial class Single
{
// Tests float.TanPi(float) over 5000 iterations for the domain -PI/2, +PI/2
private const float tanPiDelta = 0.0004f;
private const float tanPiExpectedResult = -52762.5156f;
[Benchmark]
public void TanPi() => TanPiTest();
public static void TanPiTest()
{
float result = 0.0f, value = -1.0f;
for (int iteration = 0; iteration < MathTests.Iterations; iteration++)
{
value += tanPiDelta;
result += float.TanPi(value);
}
float diff = MathF.Abs(tanPiExpectedResult - result);
if (diff > MathTests.SingleEpsilon)
{
throw new Exception($"Expected Result {tanPiExpectedResult,10:g9}; Actual Result {result,10:g9}");
}
}
}
}