COMPLEX

COMPLEX function : Converts real and imaginary coefficients into a complex number of the form x + yi or x + yj.


Syntax
COMPLEX(real_num,i_num,suffix)

Real_num   is the real coefficient of the complex number.
I_num   is the imaginary coefficient of the complex number.
Suffix   is the suffix for the imaginary component of the complex number. If omitted, suffix is assumed to be "i".
 Note    All complex number functions accept "i" and "j" for suffix, but neither "I" nor "J". Using uppercase results in the #VALUE! error value. All functions that accept two or more complex numbers require that all suffixes match.
Remarks

• If real_num is nonnumeric, COMPLEX returns the #VALUE! error value.
• If i_num is nonnumeric, COMPLEX returns the #VALUE! error value.
• If suffix is neither "i" nor "j", COMPLEX returns the #VALUE! error value.

Example
The example may be easier to understand if you copy it to a blank worksheet.

How to copy an example

1. Create a blank workbook or worksheet.
2. Select the example in the Help topic.  Note    Do not select the row or column headers.
   
   
   Selecting an example from Help
3. Press CTRL+C.
4. In the worksheet, select cell A1, and press CTRL+V.
5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

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A B Formula Description (Result) =COMPLEX(3,4) Complex number with 3 and 4 as the real and imaginary coefficients (3 + 4i) =COMPLEX(3,4,"j") Complex number with 3 and 4 as the real and imaginary coefficients, and j as the suffix (3 + 4j) =COMPLEX(0,1) Complex number with 0 and 1 as the real and imaginary coefficients (i) =COMPLEX(1,0) Complex number with 1 and 0 as the real and imaginary coefficients (1)