Functions > Utility Functions > Example: Using Complex Number Functions
Example: Using Complex Number Functions
1. Define a complex number.
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2. Use Re and Im functions to get the real part and the imaginary part of z.
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3. Use the arg function to get the principal argument of z, between −π and π.
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4. Use the csgn function to get the sign of the following complex numbers.
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5. Use the signum function to get the sign of a complex number.
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6. Compare the signum function with the result of the following expression.
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The above expression is how signum is calculated when z is not zero.
7. Use signum with 0 as the first argument.
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The function returns the second argument, when z=0.
Complex Number Functions
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