Real axis meaning

The real axis represents the set of real numbers in the complex plane.


Real axis definitions

Word backwards laer sixa
Part of speech The part of speech of the word "real axis" is a noun phrase.
Syllabic division re-al a-xis
Plural The plural of the word "real axis" is "real axes."
Total letters 8
Vogais (3) e,a,i
Consonants (4) r,l,x,s

Definition of Real Axis

The real axis is a line used in mathematics and specifically in the field of complex numbers. It is typically represented on the Cartesian plane as the horizontal axis where real numbers are plotted. In the complex plane, the real axis is essential for locating real numbers, as opposed to imaginary numbers that are found on the vertical axis.

Function of the Real Axis

The real axis serves as a reference point for understanding and visualizing complex numbers. When representing a complex number, it is often written in the form of a + bi. Here, 'a' corresponds to the real part of the number and 'b' corresponds to the imaginary part. The real axis helps to identify where the real part of the complex number lies on the Cartesian plane.

Intersecting the Real Axis

Any point on the real axis has an imaginary part of zero. This means that when a complex number is located directly on the real axis, the imaginary component is non-existent. Conversely, if a complex number falls on the vertical axis, it holds no real component. Therefore, the real axis acts as a boundary between real and imaginary numbers.

Representation in Mathematics

In mathematical equations and functions, the real axis plays a significant role in determining the behavior of complex numbers. It helps mathematicians analyze the relationship between real and imaginary components within a given system. By identifying where a complex number sits on the real axis, calculations and interpretations become more straightforward.

Applications Beyond Mathematics

While the real axis is primarily used in mathematics, its concepts can be extended to various fields. In physics, engineering, and computer science, understanding complex numbers and their relationship to the real axis is crucial for solving problems and developing applications. The real axis serves as a fundamental tool for working with both real and imaginary values.


Real axis Examples

  1. The real axis represents the set of real numbers on a graph.
  2. The function intersects the real axis at two points.
  3. Plot the complex numbers on the complex plane with the real axis horizontal.
  4. The roots of the quadratic equation lie on the real axis.
  5. To graph a linear equation, you only need two points on the real axis.
  6. The real axis is perpendicular to the imaginary axis in the complex plane.
  7. The real part of a complex number is found on the real axis.
  8. The function is defined for all values on the real axis.
  9. The projection of a point on the complex plane onto the real axis yields the real part.
  10. The Fourier transform can be represented on the real axis.


Most accessed

Search the alphabet

  • #
  • Aa
  • Bb
  • Cc
  • Dd
  • Ee
  • Ff
  • Gg
  • Hh
  • Ii
  • Jj
  • Kk
  • Ll
  • Mm
  • Nn
  • Oo
  • Pp
  • Qq
  • Rr
  • Ss
  • Tt
  • Uu
  • Vv
  • Ww
  • Xx
  • Yy
  • Zz
  • Updated 02/04/2024 - 21:14:46