complex plane

[/ˈkɒmpleks pleɪn/]
nounpl: complex planes
plano complexo
1. A two-dimensional coordinate system used to represent complex numbers, where the horizontal axis represents the real part and the vertical axis represents the imaginary part
In the complex plane, the number 3 + 4i is plotted at coordinates (3, 4)
No plano complexo, o número 3 + 4i é plotado nas coordenadas (3, 4)
2. A geometric representation where each point corresponds to a unique complex number
The complex plane allows us to visualize complex number operations geometrically
O plano complexo nos permite visualizar operações com números complexos geometricamente
3. Also called the Argand diagram, used extensively in complex analysis and engineering
Engineers use the complex plane to analyze AC circuits and signal processing
Engenheiros usam o plano complexo para analisar circuitos AC e processamento de sinais
This is a fundamental concept in mathematics and engineering education in both Brazil and Portugal, primarily taught at the undergraduate level in mathematics, engineering, and physics programs. The term is formally standardized across both countries and is essential for advanced studies in complex analysis, signal processing, and electrical engineering.
Synonyms / Sinônimos
Argand diagramArgand planecomplex coordinate planez-plane

Regional Variations

General Brazilian
plano complexo
Standard mathematical terminology used in Brazilian universities and textbooks
São Paulo
plano complexo
Same as general Brazilian usage, particularly in UNESP and USP engineering programs
Portugal
plano complexo
Identical terminology used in Portuguese mathematical education and research
Technical/Academic
diagrama de Argand
Alternative name used in more formal or historical contexts

Related Words

complex numberreal axisimaginary axispolar formCartesian coordinatesmodulusargument
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