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Post by abacus9900 on Feb 13, 2011 16:50:59 GMT 1
What is a mathematical conjugate and how is it used?
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Post by helen on Feb 14, 2011 13:11:34 GMT 1
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Post by helen on Feb 14, 2011 13:27:16 GMT 1
Just out of accessory interest, why did you post this question? Do you really not understand conjugates or is this another attack on the fact most maths is abstract, you have to admit, you do have problems with things abstract. Have you ever tried to describe love? An abstraction that folk have been trying for millenia. Heard a chap on the radio this morning talking about Ovid's attempts at describing love, like maths it is something of the mind. There are much more learned folk than me that you can discuss this with. You find the links!
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Post by principled on Feb 14, 2011 13:53:36 GMT 1
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Post by Progenitor A on Feb 14, 2011 14:13:24 GMT 1
What is a mathematical conjugate and how is it used? A conjugate is a mathematical 'trick' to change a complex number into a real number and allow easy division. (there are however, other ways of doing complex number division) Two numbers conjugate one another when they are equal except for the sign of the imaginary part Thus 3 + 4j has as it conjugate 3 - 4j When we multiply conjugates we hth eimaginary part disappears: (3 + 4j)( 3 - 4j)= 9 - 12j + 12j -16j 2= 9 - 16(-1) = 9 + 16 =25 There is also the concept of conjugate rights which sometimes arises in complex relationships
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Post by abacus9900 on Feb 14, 2011 14:20:34 GMT 1
What is a mathematical conjugate and how is it used? A conjugate is a mathematical 'trick' to change a complex number into a real number and allow easy division. (there are however, other ways of doing complex number division) Two numbers conjugate one another when they are equal except for the sign of the imaginary part Thus 3 + 4j has as it conjugate 3 - 4j When we multiply conjugates we hth eimaginary part disappears: (3 + 4j)( 3 - 4j)= 9 - 12j + 12j -16j 2= 9 - 16(-1) = 9 + 16 =25 Thanks nay, that's made things much clearer now. Clever.
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Post by helen on Feb 14, 2011 17:16:43 GMT 1
Abacuss, you don't have problem with things like imaginary numbers yet you ask an elementary question about arithmatic? So you are here with Naymissus as a WUM! It's not nice.
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Post by Progenitor A on Feb 14, 2011 17:27:36 GMT 1
Abacuss, you don't have problem with things like imaginary numbers yet you ask an elementary question about arithmatic? So you are here with Naymissus as a WUM! It's not nice. Have you examined the sheer number of scientific topics that Abacus and me have opened and contributed to? Without we two the board would be dead on its feet You do come out with all the old cliches don't you? Why do you not try contributing to the physicss threads? For example, as a chemist you may provide insight into why light slows down in glass. We are at a loss on that one - no-one here knows. It would be delightful if you could guide us.
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