## 43S News

General discussion about calculators, Swiss Micros or otherwise
grsbanks
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Location: Preston, Lancs, UK
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### Re: 43S News

ijabbott wrote:
Tue May 28, 2019 11:18 pm
You might also see it written as: ]-π, π], but I think (-π, π] is the more common style.
Not where I learned maths I always learned it as ]-π, π] and had never seen (-π, π] until this discussion cropped up. I find the former notation more intuitive and indicative of its meaning.
Not SwissMicros staff, just an enthusiast.

akaTB
Posts: 413
Joined: Tue May 02, 2017 11:56 am
Location: Milan, Italy

### Re: 43S News

Jaymos wrote:
Wed May 29, 2019 1:57 am

I scratched in the WP43S emulator code and found some good reasons why some or all of the dev team won't entertain the idea of officially changing the operators to the right hand side of the calculator.
I was under the impression (at least from posts from the golden age, left elsewhere) that every key was reassignable in the 43s. Is it still so?

I wish you luck Jaco, however remember: left is right and right is wrong!
Greetings,
Massimo
ajcaton
-+×÷ left is right and right is wrong Casted in gold

Walter
Posts: 1353
Joined: Tue May 02, 2017 9:13 am
Location: Close to FRA, Germany

### Re: 43S News

grsbanks wrote:
Wed May 29, 2019 4:39 am
ijabbott wrote:
Tue May 28, 2019 11:18 pm
You might also see it written as: ]-π, π], but I think (-π, π] is the more common style.
Not where I learned maths I always learned it as ]-π, π] and had never seen (-π, π] until this discussion cropped up. I find the former notation more intuitive and indicative of its meaning.
As usual, preference depends on what you learned first.
DM42 SN: 00041 --- Follower of Platon.

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

Walter
Posts: 1353
Joined: Tue May 02, 2017 9:13 am
Location: Close to FRA, Germany

### Re: 43S News

akaTB wrote:
Wed May 29, 2019 5:47 am
Jaymos wrote:
Wed May 29, 2019 1:57 am
I scratched in the WP43S emulator code and found some good reasons why some or all of the dev team won't entertain the idea of officially changing the operators to the right hand side of the calculator.
I was under the impression (at least from posts from the golden age, left elsewhere) that every key was reassignable in the 43s. Is it still so?

I wish you luck Jaco, however remember: left is right and right is wrong!
Please see p. 283 of the Owner's Manual.
DM42 SN: 00041 --- Follower of Platon.

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

ijabbott
Posts: 170
Joined: Fri Dec 15, 2017 1:34 pm
Location: GB-MAN

### Re: 43S News

grsbanks wrote:
Wed May 29, 2019 4:39 am
ijabbott wrote:
Tue May 28, 2019 11:18 pm
You might also see it written as: ]-π, π], but I think (-π, π] is the more common style.
Not where I learned maths I always learned it as ]-π, π] and had never seen (-π, π] until this discussion cropped up. I find the former notation more intuitive and indicative of its meaning.
I think "]-π, π]" is referred to as "French notation" and "(-π, π]" is referred to as "American notation" or "English notation". I don't know about the rest of the world, but there is also "Czech notation" which is like American/English notation but replaces square brackets with angle brackets.

Over_score
Posts: 73
Joined: Fri May 05, 2017 7:37 pm
Location: France

### Re: 43S News

Same for me: I learned ] 0 ; 1] and the french wikipedia page https://fr.wikipedia.org/wiki/Intervall ... 9matiques) discreetly mentions:
Une autre notation (d'origine anglaise mais très répandue également) utilise, pour les intervalles (semi-)ouverts, une parenthèse au lieu d'un crochet.
meaning
Another notation (of English origin but also very widespread) uses, for (semi-)open intervals, a parenthesis instead of a bracket.
I find this "french" notation more intuitive.
DM42 (SN 00284 & 03835), DM15L, HP41CV, HP42S, HP35s, WP34S, HP Prime

H2X
Posts: 557
Joined: Tue Apr 25, 2017 6:00 am
Location: Norway

### Re: 43S News

ijabbott wrote:
Wed May 29, 2019 7:48 am
I don't know about the rest of the world, but there is also "Czech notation" which is like American/English notation but replaces square brackets with angle brackets.
I learnt <-π, π] (in Norway).
DM42 #40 running WP43C | DM41X #50
The earth is flat. It just appears round because it is massive and curves spacetime.

Jaymos
Posts: 518
Joined: Sun Nov 04, 2018 6:03 pm
Location: Cape Town

### Re: 43S News

akaTB wrote:
Wed May 29, 2019 5:47 am
Jaymos wrote:
Wed May 29, 2019 1:57 am

I scratched in the WP43S emulator code and found some good reasons why some or all of the dev team won't entertain the idea of officially changing the operators to the right hand side of the calculator.
I was under the impression (at least from posts from the golden age, left elsewhere) that every key was reassignable in the 43s. Is it still so?
Massimo, almost all can be changed in the USER menu, as also per Walter’s reference. But ‘EXIT’ bottom right is recommended not to change, i.e. that is a problem for left/right swap. Also I want the keys to permanently change, not while in USER mode only.
Jaco Mostert
Elec Eng, South Africa
WP34C, HP42S, DM42 for complex math; 35S, 28C, 32Sii, WP34S, EL-506P, EL-W506, PB700; owned FX702P & 11C; used 67 & 85. iOS: 42s (Byron), Free42, WP31S/34S, HCalc.
43S operators right. DM42 sn. 03818.

ijabbott
Posts: 170
Joined: Fri Dec 15, 2017 1:34 pm
Location: GB-MAN

### Re: 43S News

H2X wrote:
Wed May 29, 2019 9:47 am
ijabbott wrote:
Wed May 29, 2019 7:48 am
I don't know about the rest of the world, but there is also "Czech notation" which is like American/English notation but replaces square brackets with angle brackets.
I learnt <-π, π] (in Norway).
So that's four different notations so far. ISO 80000-2 only lists the (] and ]] styles (hooky scanned copy here).

grsbanks
Posts: 882
Joined: Tue Apr 25, 2017 9:23 am
Location: Preston, Lancs, UK
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### Re: 43S News

Over_score wrote:
Wed May 29, 2019 7:50 am
I find this "french" notation more intuitive.
The fact that I did my secondary and further education in France probably explains why I find it more intuitive too
Not SwissMicros staff, just an enthusiast.