Argand Diagrams (Leaving Cert Mathematics): Flashcards

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Argand Diagrams
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Argand diagram purpose

Graphical way to represent complex numbers

Horizontal axis on Argand diagram

Real axis (represents real part)

Vertical axis on Argand diagram

Imaginary axis (represents imaginary part)

Real axis location

Horizontal axis

Imaginary axis location

Vertical axis

Complex number a+bia+bi plotted as

Point (a,b)(a,b)

2+3i2+3i on Argand diagram

Point (2,3)(2,3)

−2−3i-2-3i on Argand diagram

Point (−2,−3)(-2,-3)

−2i-2i on Argand diagram

Point (0,−2)(0,-2)

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