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Kevin Neilson
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Re: What Calculator?
Kevin Neilson   8/8/2014 11:36:09 AM
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I love my HP48 but now I mostly use Octave(Matlab) on my Mac for calculations.  And now I'm doing a bunch of Galois arithmetic with really long hex numbers so it's not really practical on the calculator.

mhrackin
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Re: What Calculator?
mhrackin   8/8/2014 11:08:42 AM
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@dt: since I work primarily as a high-level systems architect these days, I rarely need to do any high-powered math anymore.  When i do, i use the PC.  That wasn't a real option in class in 1983.... I am a full generation older (completed grad schoool in 1967), hence my bias for algebraic notation.

dt_hayden
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Re: What Calculator?
dt_hayden   8/8/2014 11:02:55 AM
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RPN is great.  I struggle to get a calculation on an algebraic input calculator now.  I bought a 41C back in 1983 (which is still going strong), primarily to be able to complete the exams in our controls systems class where the instructor delighted in giving us systems with 5th order characterisitc equations.  I noticed some students were consistently able to complete the exam on time and so I inquired and found the secret.  HP41 with the Math Pack.

mhrackin
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What Calculator?
mhrackin   8/8/2014 10:55:12 AM
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Since I never wear a watch anymore, decided to start a new thread, I found Woz's comments on calclators to be very interesting.  I'm one of the few engineers of my generation who did NOT run out and buy an HP35 when it came out.  It was way too expensive, and I could never understand why they insisted on RPN entry.  I grew up with algebraic notation and was comfortable with it.  I DID buy a series of TI scientific calculators (a few years later when they got down to my price range) and have used my present TI-36 Solar for some years now.  It does all that I need it to do, and I can use one of my (many) PCs when I need more power.   I do use a form of RPN now: I write silly equatiions in it to use as passwords!  Satisfies IT requirements for using upper/lower case alpha, numbers, and symbols.

Max The Magnificent
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Re: What watch?
Max The Magnificent   8/7/2014 5:05:23 PM
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@Rick: I think the Vianney Halter Antiqua is what we get when we retire from UBM (at 90), right?

That would be nice, but the way my current mortgage is, I don't think I'll be able to even think about retiring until I'm 100 (sad face)

Max The Magnificent
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Re: What watch?
Max The Magnificent   8/7/2014 5:03:32 PM
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@Mbutts: "What watch" reminds me of this clip from "Casablanca".

Good one!

rick merritt
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Re: What watch?
rick merritt   8/7/2014 4:59:45 PM
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@Max   I think the Vianney Halter Antiqua is what we get when we retire from UBM (at 90), right?

MButts
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Re: What watch?
MButts   8/7/2014 1:58:31 PM
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"What watch" reminds me of this clip from "Casablanca".

 

Max The Magnificent
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Re: What watch?
Max The Magnificent   8/7/2014 12:12:32 PM
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@Rick: I'd love to see pictures of whatever geekwear is on your wrist.

Well, I also own one of those Nixie Tube watches favored by The Woz -- I think he once said that out of all the elctronic gadgets and gizmos he's seen, this is the one he wishes he'd created himself.

Of course, we shouldn't forget The Most Amazing 3D Holographic Watch in the World.

Last but not least, if someone wanted to give one to me, I'd have to admit that the Vianney Halter Antiqua is rather tasty, but this little beauty was $95,000 the last time I looked (sad face)

rick merritt
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What watch?
rick merritt   8/7/2014 10:18:21 AM
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I'd love to see pictures of whatever geekwear is on your wrist.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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