the part a of a complex number c = a + jb NOTE 1- The real part of a complex number c is denoted by Re c or by c'. NOTE 2 - The concept of real part may be applied to a complex scalar, vector or tensor quantity or to a matrix of complex elements. Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=101-11-03
the part a of a complex number c = a + jb NOTE 1- The real part of a complex number c is denoted by Re c or by c'. NOTE 2 - The concept of real part may be applied to a complex scalar, vector or tensor quantity or to a matrix of complex elements.