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Changes required for latest bits of .NET 7 #7

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24 changes: 22 additions & 2 deletions System.Numerics.Rational/BigRational.Net7.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -877,13 +877,13 @@ public static BigRational Hypot(BigRational x, BigRational y)
}
/// <summary>Computes the n-th root of a value.</summary>
/// <remarks>
/// Part of the new NET 7 number type system see <see cref="IRootFunctions{TSelf}.Root(TSelf,int)"/>.<br/>
/// Part of the new NET 7 number type system see <see cref="IRootFunctions{TSelf}.RootN(TSelf,int)"/>.<br/>
/// The desired precision can preset by <see cref="MaxDigits"/>
/// </remarks>
/// <param name="x">The value whose <paramref name="n" />-th root is to be computed.</param>
/// <param name="n">The degree of the root to be computed.</param>
/// <returns>The <paramref name="n" />-th root of <paramref name="x" />.</returns>
public static BigRational Root(BigRational x, int n)
public static BigRational RootN(BigRational x, int n)
{
return Root(x, n, MaxDigits);
}
Expand Down Expand Up @@ -1121,6 +1121,18 @@ public static (BigRational Sin, BigRational Cos) SinCos(BigRational x)
{
return (Sin(x, MaxDigits), Cos(x, MaxDigits)); //todo: opt. cpu
}
/// <summary>Computes the sine and cosine of a value.</summary>
/// <remarks>
/// This computes <c>(sin(x * π), cos(x * π))</c>.<br/>
/// Part of the new NET 7 number type system see <see cref="ITrigonometricFunctions{TSelf}.SinCos(TSelf)"/>.<br/>
/// The desired precision can preset by <see cref="MaxDigits"/>
/// </remarks>
/// <param name="x">The value, in radians, whose sine and cosine are to be computed.</param>
/// <returns>The sine and cosine of <paramref name="x" />.</returns>
public static (BigRational SinPi, BigRational CosPi) SinCosPi(BigRational x)
{
return (Sin(x * Pi(MaxDigits), MaxDigits), Cos(x * Pi(MaxDigits), MaxDigits)); //todo: opt. cpu
}
/// <summary>Computes the arc-cosine of a value and divides the result by <c>pi</c>.</summary>
/// <remarks>
/// This computes <c>arccos(x) / π</c> in the interval <c>[-0.5, +0.5]</c>.<br/>
Expand Down Expand Up @@ -1220,6 +1232,14 @@ public static BigRational Atan2Pi(BigRational y, BigRational x)
return Atan2(y, x, MaxDigits) / Pi(MaxDigits); //todo: opt. cpu
}

// IFloatingPointConstants
/// <inheritdoc />
static BigRational IFloatingPointConstants<BigRational>.Pi => Pi();
/// <inheritdoc />
static BigRational IFloatingPointConstants<BigRational>.Tau => Tau();
/// <inheritdoc />
static BigRational IFloatingPointConstants<BigRational>.E => throw new NotImplementedException();

// IFloatingPointIeee754 (double compat.)
/// <summary>Computes the integer logarithm of a value.</summary>
/// <remarks>
Expand Down