Search found 68 matches

by pauli
Fri Jun 19, 2020 8:38 am
Forum: Discuss!
Topic: Who uses the 43S simulator under Windows, Linux, or on a Mac?
Replies: 44
Views: 3251

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

1mm.Hg ≠ 1 torr. Saying it is close enough isn't the standard I want the 34S to be judged by.

I would support adding a mm.Hg conversion.


Pauli
by pauli
Tue Jun 09, 2020 12:36 pm
Forum: DM42
Topic: DM42 and accuracy
Replies: 24
Views: 1338

Re: DM42 and accuracy

Free42 uses Intel's decimal library. The 34S doesn't. Intel's library is faster, larger and doesn't carry as many guard digits as the 34S.

Pauli
by pauli
Tue May 26, 2020 10:32 am
Forum: Discuss!
Topic: Root-Seeking Algorithms
Replies: 2
Views: 227

Re: Root-Seeking Algorithms

The WP 34S uses an updated version of Brent's method . In addition to the inverse quadratic, bisection and secant steps that Brent's use, it will also undertake steps of Ridder's method . Ridder's method is good but needs the root to be bracketed and isn't quite as general Brent's method. On the 34S...
by pauli
Wed May 20, 2020 10:35 am
Forum: Discuss!
Topic: 43S News
Replies: 893
Views: 152346

Re: 43S News

tuxfish wrote:
Tue May 19, 2020 8:10 pm
being much more powerful than Voyager 2's computer nodes combined - in my hands 😁
Not a difficult target to meet with modern embedded processors.

Pauli
by pauli
Wed May 20, 2020 10:31 am
Forum: Discuss!
Topic: 43S News
Replies: 893
Views: 152346

Re: 43S News

an attempt to ditch radians failed as well. Thus, frowning, we must allow for and support a huge number range which is unphysical to its overwhelming part. :roll: Dropping radians and limiting the range to 10^99 would still require upwards of 130 digits to be carried to successfully do the modulo r...
by pauli
Tue May 19, 2020 10:17 am
Forum: Discuss!
Topic: 43S News
Replies: 893
Views: 152346

Re: 43S News

We're not using math.h primarily because it uses a binary based floating point format. Calculators use decimal floating point because their users mostly work in decimal. The differences can be a surprise at times. Something as simple as 0.3 cannot be exactly represented as a binary number, it can in...
by pauli
Sun Apr 26, 2020 3:08 am
Forum: Discuss!
Topic: WP 43S Pilot Run (Poll!)
Replies: 189
Views: 29372

Re: WP 43S Pilot Run (Poll!)

I quite like this one.

Pauli
by pauli
Tue Apr 21, 2020 11:47 am
Forum: Discuss!
Topic: 43S News
Replies: 893
Views: 152346

Re: 43S News

toml_12953 wrote:
Tue Apr 21, 2020 6:33 am
Here's what I get when I start it in Windows now. It worked before.
You've found the blank nut equivalent.

Pauli
by pauli
Tue Apr 21, 2020 7:27 am
Forum: Discuss!
Topic: Who uses the 43S simulator under Windows, Linux, or on a Mac?
Replies: 44
Views: 3251

Re: Who uses the 43S simulator under Windows, Linux, or on a Mac?

Me when doing development.

Pauli
by pauli
Tue Apr 21, 2020 7:26 am
Forum: Discuss!
Topic: 43S News
Replies: 893
Views: 152346

Re: 43S News

Deleting the configuration file `backup.bin` fixes some problems in my experience.

Pauli