methods getReal.ts

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  import { IComplex } from '../internal/complex';
import mask from '../internal/mask';
import realImpl from '../internal/realImpl';
 
export default function getReal (z: IComplex): number {
  if (!(z._mask & mask.HAS_REAL)) {
    z._real = realImpl(z._abs, z._arg);
    z._mask |= mask.HAS_REAL;
  }
 
  return z._real;
}