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HP 35s Instruction Manual page 4

Working with complex numbers –part 1
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HP 35s Working with complex numbers – part 1
Answer:
The answer is 0.125 + 0.625i. Figure 6 shows the answer in RPN mode
Example 4: For the complex number 5+6i, find the magnitude of the vector represented.
Solution:
In RPN or algebraic mode:
6
Answer:
The answer of 7.8102 is shown in the display. Figure 7 shows the answer in RPN mode. Note that if the
magnitude is needed separated from the number shown, the º^ function will provide it (this is
shown in Figure 8). If the angle is desired separated from the number shown, the ¹= function will
provide it.
Example 5: The voltage in a circuit is 45 + 5j volts and the impedance is 3 + 4j ohms. Find the total current.
Solution:
Using the equation E = I x Z, the current I is equal to E / Z.
In RPN mode:
6
In algebraic mode:
6
Answer:
The answer is 6.2 – 6.6i. This is equivalent to 6.2 - 6.6j amps. Figure 9 shows the answer in RPN mode.
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8Ë0
6
6
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Figure 7
Figure 8
Figure 9
HP 35s Working with complex numbers – part 1 - Version 1.0

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