**II. Menu Keys - Keys that offer
choices**

G. CPLXSince complex numbers are not generally covered in algebra, trigonometry, or the first two calculus courses, this topic is given just a cursory introduction.

A complex number consists of two parts. In rectangular form a complex number is entered in the format:

(real,imaginary).The following options are offered in the CPLX (Complex Number) Menu. Access the CPLX menu by pressing . These examples are for rectangular mode only and only the more common functions are shown below.

conj

Gives the complex conjugate of a complex

number, a list, a vector or a matrix.real

Gives the real part of a complex

number, a list, a vector or a matrix.imag

Gives the imaginary part of a complex

number, a list, a vector or a matrix.abs

Evaluates the magnitude of a complex

number, a list, a vector or a matrix.