Argand diagram
- noun
- /ˈɑrɡænd ˈdaɪəɡræm/
- Specialized
:
diagrama de Argand
- The Argand diagram is a useful tool for visualizing complex numbers in mathematics.
Examples
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Students learned to plot both real and imaginary parts on an Argand diagram during the lesson.
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Each point on the Argand diagram corresponds to a unique complex number.
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The Argand diagram illustrates complex numbers effectively.
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Can you explain the Argand diagram to me?
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The Argand diagram helps students understand how complex numbers are represented visually.
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Each point on the Argand diagram represents a specific complex number in a two-dimensional plane.
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In the class, we used the Argand diagram to illustrate the relationships between real and imaginary parts.
Synonyms
1
7.1
A flat surface for showing numbers that have a real part and an imaginary part as points
Surface Forms
Morphology
Argand + diagram
The noun 'diagram' clearly signals a drawing or schematic, so a learner who knows that word can infer that this is some kind of diagram; however 'Argand' is a proper name (not a lexical meaning) and does not indicate that the diagram represents complex numbers or the complex plane. Because only part of the meaning (that it is a diagram) is recoverable from the constituents while the specific mathematical sense is not predictable from the name, the expression is best judged semi-transparent.
Etymology
Argand diagram comes from Jean-Robert Argand, who showed how to draw complex numbers as points on a flat plane. He used the horizontal line for the real part and the vertical line for the imaginary part, so each number becomes a dot, which is why the diagram helps to 'see' complex numbers.