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Complex Number Affix

Tool to calculate the affix of a complex number. The affix of a complex number is the number $z$ of the form $ai + b$ representing the coordinates of the number in the complex plane.

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Complex Number Affix -

Tag(s) : Arithmetics, Geometry

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# Complex Number Affix

## Answers to Questions (FAQ)

### What is the affix a complex number? (Definition)

The affix of a complex number $z$ is the name given to the form $a + ib$ of the complex number, with $a$ the real part (coordinate $x$) and $b$ the imaginary part (coordinate $y$) in the complex plan.

The term affix is less and less used today because it is generally replaced by the general term complex number.

### How to calculate the affix of a complex number?

The affix calculation can be performed from the position of the number in the complex plane:

Example: An point with abscissae $2$ (x-axis, real part) and ordinate $3$ (y-axis, imaginary part) in the complex plane has the affix $z = 2 + 3 i$

The calculation can also come from a vector of the plane.

### How to calculate the affix of a vector?

The affix of a vector is the complex number equivalent to it (same coordinates in the complex plane)

Example: A vector of the complex plane with components $(4,2)$ has the affix $z = 4 + 2 i$

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Complex Number Affix on dCode.fr [online website], retrieved on 2024-07-18, https://www.dcode.fr/complex-number-affix

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