static int Main()
{
double x = 1;
Write("sin({0})={1:f2}\n", x, Sin(x));
Write($"sin({x})={Sin(x)}\n");
double y = x * Exp(x);
Write($"y={y} (E={E})\n");
complex I = new complex(0, 1);
complex ii = I * I;
Write($"I*I={ii}\n");
complex sini = sin(I);
Write($"sin(I)={sini}\n");
complex si2ci2 = sin(I).pow(2) + cos(I).pow(2);
Write($"sin(I)^2+cos(I)^2={si2ci2}\n");
complex ipowi = I.pow(I);
Write($"I.pow(I)={ipowi}, exp(-PI/2)={Exp(-PI/2)}\n");
complex si = (-(complex)1.0).pow(0.5);
si.print("sqrt(-1)=");
si.printf("sqrt(-1)=({0:f2},{1:f2})");
var invi = 1 / I;
invi.print("1/I=");
log(I).print("log(I)=");
(I * PI / 2).print("I*PI/2=");
return(0);
}
