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Bollweevil
Join Date: Dec 2003
Location: Fulshear, Texanistan
Posts: 3,363
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Hexadecimal -> Octal -> Decimal ... anyone ??
Ran across my OLD TI-Progammer calculator the other day.
Bought in 1978 while working as a Systems Engineer for EDS (Electronic Data Systems). Great for converting to base-10 / base-8 / base-16 numbering systems and other operations. Per TI advertising, "a calculator that is of very little use for 99.9994% of the population". IIRC I paid $40+ for it back in the day. A lot of money then for a calculator. Installed a fresh 9V battery and it fired right up... then just turned if off ! I am no longer part of that .0006% of the population it seems. Also found a couple of TI-30 calculators in the box. 
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Jack 74 911 Coupe 2.7L - K21 Option - S suspension |
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02-27-2022, 10:58 AM
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I see you
Join Date: Nov 2002
Location: NJ
Posts: 29,981
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Hexadecimal caused me to question my reason for existing. |I'd stare at a core dump like Bambi in headlights. Once I got into the groove I was good but man what an alternate universe that was. I never did finish that graduate program.
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Si non potes inimicum tuum vincere, habeas eum amicum and ride a big blue trike. "'Bipartisan' usually means that a larger-than-usual deception is being carried out." |
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02-27-2022, 11:47 AM
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?
Join Date: Apr 2002
Posts: 30,710
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LOL ... who needs a calculator ....
A + B = 15  I was given a SOLAR powered hex calculator/converter at an IBM Op Sys class in the mid-80s ... it was a bit helpful too  I smelled like a dump for years too! |
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02-27-2022, 11:58 AM
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Evil Genius
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and the first thing we all did with these new fangled calculating devices was spell words upside down on the display.
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Life is a big ocean to swim in. Wag more, bark less. 
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02-27-2022, 12:39 PM
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I've always got a calculator by my computer for informal math: simple hex<->decimal<->binary conversions, division, etc.
For anything more 'real' I use excel and then mathematica/matlab. Had a few hp calcs die and was surprised there was nothing good any more. Took my son's hp50 but I don't like the key layout. Came across the wp34s project and built 10 of them, gave a bunch away to friends. WP34S is a pretty kickass item: http://h20331.www2.hp.com/hpsub/downloads/S05%20The%20WP34S%20Evolves%20V3.pdf |
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02-27-2022, 12:42 PM
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Registered
Join Date: Jul 2021
Posts: 689
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5318008
Sent from my SM-G988B using Tapatalk |
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02-27-2022, 03:10 PM
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Registered
Join Date: Sep 2015
Location: NY
Posts: 7,072
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Quote:
Octal we never used though. |
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02-27-2022, 03:48 PM
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https://www.swissmicros.com/products
These seem ok... You can also get FREE42 for your smartphone. My dad had an old TI similar to that. Last edited by fanaudical; 02-27-2022 at 04:57 PM.. |
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02-27-2022, 04:54 PM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,435
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I've got RPN calc apps on my PC (Apple and MS before that) and phone.
I'm all about the RPN. I wrote a research paper on number systems in the 7th grade. Binary conversions are super easy, I do those in my head. Hex is a little more difficult. I used to be able to do those in my head too, but haven't needed to in so long, I'd probably use a website or app (if my RPN calc app won't do it). I've never needed to work with base4 or base8 for any reason.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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02-27-2022, 05:27 PM
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Registered
Join Date: Mar 2003
Posts: 10,388
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Still use and teach octal every term for doing Linux file permissions.
Decimal to binary is still taught in our Networking classes - can't subnet without it! I cover hex stuff when I have to substitute teach one of the web front end classes (color selection). |
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02-27-2022, 05:31 PM
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I see you
Join Date: Nov 2002
Location: NJ
Posts: 29,981
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Quote:
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Si non potes inimicum tuum vincere, habeas eum amicum and ride a big blue trike. "'Bipartisan' usually means that a larger-than-usual deception is being carried out." |
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02-27-2022, 06:05 PM
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Registered
Join Date: Sep 2015
Location: NY
Posts: 7,072
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OMG. I was separating the bits trying to figure why it didn’t work.
I was trying to fit this: 0101 0011 0001 1000 0000 0000 1000 Into this: 10100010010010101111000 I need a life. And perhaps just one more glass of bourbon... |
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02-27-2022, 07:16 PM
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Registered
Join Date: Jun 2000
Location: bottom left corner of the world
Posts: 22,828
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I've got one of those calculators too. Not that I'd know how to use it these days.
Anything slightly complicated I just do it in Excel. Easier to get your logic right I feel. |
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02-27-2022, 07:33 PM
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canna change law physics
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Our PR1ME 300 used octal. I didn't learn hex until we bought an early Apple ][
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 Last edited by red-beard; 03-04-2022 at 06:59 PM.. |
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02-27-2022, 07:44 PM
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Detached Member
Join Date: May 2003
Location: southern California
Posts: 26,964
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If 710 Arabs fight 773 Israelites for 45 days who win? 71077345 flip it over, SHELLOIL
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Hugh |
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02-27-2022, 07:57 PM
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Registered
Join Date: Jan 2007
Location: Somewhere in North L.A. County
Posts: 2,107
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Quote:
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Jeff Hail "All men dream: but not equally. Those who dream by night in the dusty recesses of their minds, wake in the day to find that it is vanity; but the dreamers of the day are dangerous men, for they act their dream with open eyes, to make it possible" Last edited by Jeff Hail; 02-27-2022 at 11:33 PM.. |
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02-27-2022, 11:27 PM
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a.k.a. G-man
Join Date: Sep 2003
Posts: 13,614
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Quote:
Thought I was deciphering some kind of secret code... Turns out it's boobies... 
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Сидеть, ложь, Переворачиваться Last edited by Geronimo '74; 02-28-2022 at 02:54 AM.. |
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02-28-2022, 12:38 AM
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Registered
Join Date: Oct 2004
Location: Boston
Posts: 293
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Been using this for 35 years...
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02-28-2022, 02:28 AM
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Senior Member
Join Date: Mar 2000
Location: Lacey, WA. USA
Posts: 25,311
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I can't find my slide rule.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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02-28-2022, 11:40 AM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,435
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Quote:
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
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02-28-2022, 02:37 PM
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1982 Porsche 911SC 3.0L warmed over
1980 Porsche 911 sc
Kids and pets get names...
1970/1982 Porsche 914-6/911SC 2.7 RS
