functions neg.ts

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  import { IComplex, IComplexConstructor } from '../internal/complex';
import mask from '../internal/mask';
 
export default function neg<T extends IComplex> (Complex: IComplexConstructor<T>, z: IComplex | number, i = 0): T {
  let zReal: number;
  let zImag: number;
  let zAbs: number;
  let zArg: number;
  let zMask: mask;
 
  if (typeof z === 'number') {
    zReal = z;
    zImag = i;
    zAbs = NaN;
    zArg = NaN;
    zMask = mask.HAS_CARTESIAN;
  } else {
    zReal = z._real;
    zImag = z._imag;
    zAbs = z._abs;
    zArg = z._arg;
    zMask = z._mask;
  }
 
  return new Complex(-zReal, -zImag, zAbs, zArg + Math.PI, zMask);
}