internal static bool TryPulling(TrigTable table, ComplexNumber arg, out Entity res)
{
if (arg.IsImaginary())
{
res = null;
return(false);
}
// arg in [0; 2pi]
var dArg = arg.Real.Value;
EDecimal Remainder(EDecimal a, EDecimal divisor)
=> a.RemainderNoRoundAfterDivide(divisor, MathS.Settings.DecimalPrecisionContext);
var twoPi = RealNumber.CtxMultiply(2, MathS.DecimalConst.pi);
dArg = Remainder(
RealNumber.CtxAdd( // (
Remainder(dArg // dArg
, // %
twoPi) // 2pi
, // +
twoPi // 2pi
) // )
, // %
twoPi // 2pi
);
int begin = 0;
int end = table.Count - 1;
while (end - begin > 1)
{
var mid = (end + begin) / 2;
if (EDecimalWrapper.IsGreater(table[mid].arg, dArg))
{
begin = mid;
}
else
{
end = mid;
}
if (end >= table.Count)
{
res = null;
return(false);
}
}
for (var j = begin; j <= end; j++)
{
if (Number.Functional.IsZero(table[j].arg - dArg))
{
res = table[j].res;
return(true);
}
}
res = null;
return(false);
}
internal static bool TryPulling(TrigTable table, ComplexNumber arg, out Entity res)
{
if (arg.IsImaginary())
{
res = null;
return(false);
}
// arg in [0; 2pi]
var dArg = arg.Real.Value;
dArg = (dArg % (2 * MathS.DecimalConst.pi) + 2 * MathS.DecimalConst.pi) % (2 * MathS.DecimalConst.pi);
int begin = 0;
int end = table.Count - 1;
while (end - begin > 1)
{
var mid = (end + begin) / 2;
if (table[mid].arg > dArg)
{
begin = mid;
}
else
{
end = mid;
}
if (end >= table.Count)
{
res = null;
return(false);
}
}
for (var j = begin; j <= end; j++)
{
if (Number.Functional.IsZero(table[j].arg - dArg))
{
res = table[j].res;
return(true);
}
}
res = null;
return(false);
}
private static bool TryPulling(TrigTable table, Complex arg,
[System.Diagnostics.CodeAnalysis.NotNullWhen(true)] out Entity?res)
{
if (!(arg is Real {
EDecimal : var dArg
}))
