Operators

Arithmetic + - * /; comparison < <= > >= == !=; logical && || !. Precedence runs unary, then * /, then + -, then comparisons, then &&, then || — use parentheses to be explicit.

float mid    = (High(nifty, M5, 0) + Low(nifty, M5, 0)) / 2;
bool  signal = rsi[0] > 30 && Close(nifty, M5, 0) > mid;
bool  flat   = !signal;