Changes

*Also x is  called the real part & y is the imaginary patr of a complex number.

*Also x is  called the real part & y is the imaginary patr of a complex number.

*'COMPLEX' is the function used to convert Real & Imaginary numbers in to a complex number.

*'COMPLEX' is the function used to convert Real & Imaginary numbers in to a complex number.

*<math>cos(x+iy)<math> is defined by <math>cos(x+iy)=cos(x)cosh(y)-isin(x)sinh(y)<math>

*<math>cos(x+iy)</math> is defined by <math>cos(x+iy)=cos(x)cosh(y)-isin(x)sinh(y)</math>

== Examples ==

== Examples ==