Search found 341 matches

by dlachieze
Fri Nov 26, 2021 11:33 pm
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

Another way to solve this issue while keeping the slash allowed in variable names would be to use the obelus symbol "÷" for the division operator as used on many calculators. This way, no more confusion between slash and division.
by dlachieze
Fri Nov 26, 2021 11:10 pm
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

Just terminating a name and wanting to continue with the division operator / requires inserting a space manually since / is the only operator symbol allowed to appear in a name. So U=R*I would be interpreted as U equals R times I But R=U/I would be interpreted as R equals the variable ‘U/I’ and not...
by dlachieze
Fri Nov 26, 2021 4:39 pm
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

If a blank is required to separate a name and a slash, then for coherence and consistency this rule should apply to all operators used in equations. The blank should be automatically added when entering the operator, in a similar way as what is done on the HP-48 when entering several commands on the...
by dlachieze
Fri Nov 26, 2021 11:36 am
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

I tested without any space before or after the operator symbol, exactly as written above. And to provide some more details: as a user the context matters. In a program I may want to have a variable named "PI÷4" to store the numerical value if it’s used many times in my program, but in an e...
by dlachieze
Fri Nov 26, 2021 11:08 am
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

Walter wrote:
Fri Nov 26, 2021 11:01 am
Thanks for verifying. That's a shining example of coherence, isn't it?
I would say it’s a good example of user friendliness ;)

As a user, Plus42 works exactly as I would expect, but I’m just a basic calculator user.
by dlachieze
Fri Nov 26, 2021 10:54 am
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

I just verified the following on Plus42: It’s possible to create a variable named "PI÷4", "÷" being the division operator. In an equation "PI÷4" is interpreted as PI divided by 4 and not as the variable "PI÷4" So it seems that in equations the operator symbols...
by dlachieze
Thu Nov 25, 2021 2:43 pm
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

@ALL: I would like to know if other future users agree with me. I’m used to keystroke programming on the 42S and 34s where everything is available on the keyboard or through menus or catalogs. Same with the HP 48 or the Prime. The only exception is the 41C where you have to spell the functions whic...
by dlachieze
Wed Nov 24, 2021 5:13 pm
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

dlachieze wrote:
Wed Nov 24, 2021 11:12 am
when [Plus42] translates the equations to user code for execution it enables the NSTACK mode (to be confirmed by Thomas).
confirmed
by dlachieze
Wed Nov 24, 2021 12:54 pm
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

Walter wrote:
Wed Nov 24, 2021 11:33 am
I could not find any similar limits in the HP-27S either. No idea how HP solved this problem way back then. Does anyone know?
The 27S as the 18C, which was the first HP calculator with a built in equation solver, has an underlying system RPL OS, so it has access to an unlimited stack.
by dlachieze
Wed Nov 24, 2021 11:12 am
Forum: Discuss!
Topic: 43S News
Replies: 1415
Views: 384434

Re: 43S News

RefMan p.160 : Equations (in EQN) may be three parentheses deep with SSIZE8 clear, seven parentheses deep with SSIZE8 set. To my knowledge Plus42 doesn’t have any similar limitation, I tested successfully an 8 parentheses deep equation with a 4-level stack. I think that’s because it has a NSTACK mo...