RPN-1250
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09-28-2015, 02:01 AM
(This post was last modified: 09-28-2015 02:11 AM by matthiaspaul.)
Post: #4
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RE: RPN-1250
(09-27-2015 06:17 PM)Benoit Maag Wrote: What it does not have (vs HP-29C) is:The original layout (as far as I could decipher it on the photo): Code:
Code:
- Combined CLR and ALL. First F+CLR will invoke "Clear", either F+CLR+< (or F+CLR immediately followed by F+CLR again) will invoke "Clear All". - Added P>R and R>P functions - Added |x| function - Rearranged some assignments for an IMHO more logical, easier to memorize layout and more convenient usage (although various compromises had to be made given the very limited number of keys): - EEX directly invocable and part of the numpad - pi is often on the same key as EEX - IP/FP are semantically related to decimal points - PSE is often on same key as 0 - RCL is used more often than STO - Operations 1/x and +/- are frequently needed and typically located close to Enter - Rv and x<>y are frequently needed stack manipulations and should be easily accessible - LOG and 10^x in same column as 1 for mnemotical reasons - LN and e^x in same colum as 2 for mnemotical reasons (e=2...) (Another possible order instead of LOG/LN/SQRT could be SQRT/LN/LOG, but it would not group SQRT near y^x.) - Enter key above op keys, not below them. This makes the four op keys line up nicely with the numpad - Delete (<) in upper right corner Greetings, Matthias -- "Programs are poems for computers." |
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Messages In This Thread |
RPN-1250 - Benoit Maag - 09-27-2015, 06:17 PM
RE: RPN-1250 - Harald - 09-27-2015, 08:40 PM
RE: RPN-1250 - Jonathan Cameron - 09-27-2015, 09:42 PM
RE: RPN-1250 - matthiaspaul - 09-28-2015 02:01 AM
RE: RPN-1250 - Benoit Maag - 09-28-2015, 02:36 AM
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