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Complex numbers

Perrin · 2009-05-03 19:59:07

This may seem a odd question but I have a complex number question that I have the answer to z=(6j)(9) 54j _____ = _____ = 2.769 + 4.154j 9 + 6j 9 + 6j Can anyone help me output this answer on my calculator? I'm using a sharp EL-520W

03-05-2009 7:59pm

#1

Perrin

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This may seem a odd question but I have a complex number question that I have the answer to
z=(6j)(9) 54j
_____ = _____ = 2.769 + 4.154j
9 + 6j 9 + 6j

Can anyone help me output this answer on my calculator?
I'm using a sharp EL-520W

0

Comments

#2 03-05-2009 8:53pm

LeixlipRed

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I don't know if your calculator would be able to add complex numbers together. However, complex number addition is defined as follows:

z=a+ib, w=c+id

z+w=(a+c) + i(b+d)

i.e. You add the real parts to the real and the complex to the complex.

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#3 03-05-2009 8:56pm

Pherekydes

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Mode 3 (to enter complex number calculations)

54i /(9+6i)

=

2.769etc

2nd F <-,->

4.15 etc i

To enter i press the "a b/c" key

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#4 03-05-2009 9:10pm

Perrin

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A thousand thanks Pherekydes,that had me stumped for ages,guess I'm a little slow

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#5 03-05-2009 9:24pm

LeixlipRed

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Never even knew you could do that.

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#6 03-05-2009 9:31pm

Pherekydes

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LOL. Neither did I until I took out my Sharp EL-520W and its manual after reading the OP!

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#7 03-05-2009 10:19pm

LeixlipRed

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You cheat you

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