Additional Data Types and Plot Types

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Additional Data Types and Plot Types
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Complex data

• Numbers with both a real and an imaginary
  component.
• General form c a bi
• c is a complex number a and b are
  real numbers i is
• a is called the real part and b is
  called the imaginary part of the complex number
  c.
• Conversion to polar coordinates (z magnitude,
  ? angle)

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Plotting complex number

• A complex number can be plotted as a point on the
  plane with the horizontal axis as the real axis
  and vertical axis as the imaginary axis.
  (rectangular coordinates)
• abi can be represented as a single point with
  a units along the real axis and b units along
  the imaginary axis.

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Complex variables, associated functions

• gtgtc1 43i
• c14.00003.0000i
• Imaginary part can be specified by simply
  appending an i or j to the end of a number.

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Plotting complex data

• Plots t vs real part of y(t)

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• Plots t vs real part of y(t), t vs imaginary part
  of y(t)

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• Plots real part of y(t) vs Imaginary part of y(t)

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Polar plot magnitude vs angle
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Exercise