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HP48g function - Mark Davies - 02-20-2006 I am trying to figure out how to use my HP 48G to solve simultaneous equations using vectors for an electrical circuits. So far I am drawing a blank. It seems that all the schools are set up to use TIs' and no one knows the HPs'. Can anyone tell me how to use my HP to perform mesh analysis for AC circuits. I would be most greatful. Thank you.
Re: HP48g function - Jan - 02-20-2006 I guess you calculate currents and voltages in complex notation by using (complex) amplitudes and impedances. The 48 can calculate with matrices in order to solve sets of linear equations (see the math menu and the manual on matrix calculations). I am not sure however if the 48 can handle complex matrices as well.
Re: HP48g function - Karl Schneider - 02-20-2006 Mark -- You're in luck! In collecge 15 years ago, I not only solved AC and DC loop circuits using matrix functions on my HP-15C, but also now have a 48G at which I am reasonably competent. After setting up the exactly-determined system-coefficient matrix and the system-measurement vector (both real-valued for DC systems; both complex-valued for AC systems):
I used this procedure successfully to solve two examples in the HP-15C manual. BTW, this question could also have been posed in the Usenet group comp.sys.hp48, but it's not inappropriate here. Regards,
-- KS
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