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*This function gives the real coefficient of the complex number.
*This function gives the real coefficient of the complex number.
*MREAL(z), Where z is the complex number is in the form of "x+iy".i.e.
*MREAL(z), Where z is the complex number is in the form of "x+iy".i.e.
*x&y are the real numbers.'i' imaginary unit .i=sqrt(-1).
*x&y are the real numbers.'i' imaginary unit .<math>i=sqrt(-1)</math>.
*The complex number z= x+iy can be identified by (x,y) in the complex plane.
*The complex number <math>z= x+iy</math> can be identified by (x,y) in the complex plane.
*Here x is called real part and y is the imaginary part of z.
*Here x is called real part and y is the imaginary part of z.
*This function shows the value of the real part of z.
*This function shows the value of the real part of z.