# Manuals/calci/COMPLEXNUM

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**COMPLEXNUM(Real,Imaginary,Suffix)**

- is the real part of the complex number.
- is the imaginary part of the complex number.
- is the imaginary unit of the complex number.

## Description

- COMPLEXNUM function converts the real and imaginary coefficients into a complex number.
- A complex number is a combination of a real and an imaginary number.
- A number which is positive or negative, rational or irrational or decimals are called real numbers.
- An Imaginary number is a number that when squring it gives a negative result.
- For e.g. . Because a negative times a negative is positive.
- A complex number is a number is in the form , where and are real numbers and is the imaginary unit. Where
- In , here is the real part of the complex number, is the imaginary part of the complex number and is the imaginary unit of a complex number like or .
- To mention and , we must use the lower case only
- In a complex number real part is denoted by & imaginary part is denoted by .
- COMPLEXNUM returns the error value, when and are non-numeric.
- should be either or , otherwise it shows error value.
- A Complex number whose real part is zero is said to be purely imaginary.
- A Complex number whose imaginary part is zero is a real number. In that cases we have to assign '0' for that part.

- =COMPLEXNUM(5,2) gives
- =COMPLEXNUM(5,2,["j"]) gives

## ZOS

- The syntax is to calculate COMPLEXNUM in ZOS is
- is the real part.
- is the imaginary part.
- is imaginary unit which is either "i" or "j".
- E.x: COMPLEXNUM(-1..1,10..11,"j")

## Examples

COMPLEXNUM(real,imaginary,suffix) | rn | in | sf | RESULT |
---|---|---|---|---|

COMPLEXNUM(5,6) | 5 | 6 | 5+i6 | |

COMPLEXNUM(7,3,"j") | 7 | 3 | j | 7+j3 |

COMPLEXNUM(4,0,"i") | 4 | 0 | i | 4+i0 |

COMPLEXNUM(0,-4,"i") | 0 | (-4) | i | 0-i4 |

COMPLEXNUM(5,"j") | 5 | j | Error |

## Related Videos

## See Also

## References