Search found 777 matches

by Walter
Mon Nov 18, 2019 2:59 pm
Forum: OFFIMG library
Topic: Useful Content for the "Ultimative OFFIMG"
Replies: 18
Views: 1966

Re: Useful Content for the "Ultimative OFFIMG"

Alas, I've to confirm what Bob and Tom said. When you're at it, please correct the electron mass by a factor of 10^4.
by Walter
Sun Nov 17, 2019 8:44 pm
Forum: Discuss!
Topic: Got a 'new' WP34S today...
Replies: 3
Views: 156

Re: Got a 'new' WP34S today...

rprosperi wrote:
Sat Nov 16, 2019 9:10 pm
... the etsy seller also makes and sells complete units on eBay, so more than likely he is the source.
Thanks for the information, Bob. Right now, I don't find him selling anything on eBay but will see sooner or later.
by Walter
Sun Nov 17, 2019 12:40 pm
Forum: Software Library
Topic: Constants
Replies: 17
Views: 3255

Re: Constants

@wiljea: You wrote Concerning Wien's displacement law, anyone who has a minimal knowledge of it, knows that the units of the constant is m x K (meter times Kelvin). Notations are made for good reason: They should ease reading and, in consequence, comprehending. Anyone who has a minimal knowledge of ...
by Walter
Sun Nov 17, 2019 10:23 am
Forum: Software Library
Topic: Constants
Replies: 17
Views: 3255

Re: Constants

These products are not self-explanatory. :shock: They are not meant to be and they even cannot be IMHO. Please note that the symbols used for the constants supported are far more meaningful than just calling them by numbers (as some calculator manufacturers did not too long ago). But students dealin...
by Walter
Sun Nov 17, 2019 8:40 am
Forum: Software Library
Topic: Constants
Replies: 17
Views: 3255

Re: Constants

Please look at the draft documentation of WP43S at/in GitLab for the constants currently provided by us (see https://gitlab.com/Over_score/wp43s/tree/master/draft%20documentation ). We have all constants (sic!) stored in a table and just point to them. So far, we don't feature the Cs frequency, Wien...
by Walter
Sun Nov 17, 2019 8:27 am
Forum: Discuss!
Topic: Little Problem with Complex Mathematics on Calculators
Replies: 27
Views: 3056

Re: Little Problem with Complex Mathematics on Calculators

... "∞" is not a number. You cannot do arithmetic with it. Depends. IIRC, IEEE 754 takes ±∞ as numeric (and NaN as "not a number"). You can do some arithmetic with ±∞ but have to be careful in transforms of complex numbers. E.g. ∞ ∡ π/2 = 0 + i×∞ which you won't get by applying the standard polar t...
by Walter
Sat Nov 16, 2019 11:05 pm
Forum: Software Library
Topic: Constants
Replies: 17
Views: 3255

Re: Constants

Thanks or sharing - found some constants I didn't see for 40 years working as a physicist.

Nitpicky remark: Why do you zip a 26kB file? It takes precisely 26kB zipped as well. #)
by Walter
Sat Nov 16, 2019 5:31 pm
Forum: Discuss!
Topic: Got a 'new' WP34S today...
Replies: 3
Views: 156

Got a 'new' WP34S today...

20191116_WP34S_s.jpg
20191116_WP34S_s.jpg (103.23 KiB) Viewed 156 times
... does anybody know the outfitter?
by Walter
Sat Nov 16, 2019 9:11 am
Forum: Discuss!
Topic: 43S News
Replies: 482
Views: 69331

Re: 43S News

Point taken! 8-)
by Walter
Sat Nov 16, 2019 8:47 am
Forum: OFFIMG library
Topic: Useful Content for the "Ultimative OFFIMG"
Replies: 18
Views: 1966

Re: Useful Content for the "Ultimative OFFIMG"

The backside of the DM42 is empty still ... if you need it you can attach a periodic table there taking a bigger sheet of adhesive film.