Search found 326 matches

by toml_12953
Fri May 31, 2019 1:58 pm
Forum: Discuss!
Topic: CAVEAT AVCTOR (WP34S)
Replies: 7
Views: 1120

Re: CAVEAT AVCTOR (WP34S)

Walter wrote:
Fri May 31, 2019 8:35 am


For future books or manuals to be printed on demand, I will certainly try finding another publisher. I recommend other potential authors to do the same.
I can put it on Dropbox for free if you want PDF copies to be available.
by toml_12953
Wed May 29, 2019 1:14 am
Forum: Discuss!
Topic: 43S News
Replies: 468
Views: 62833

Re: 43S News

You might also see it written as: ]-π, π], but I think (-π, π] is the more common style. The round bracket (parenthesis), or reversed square bracket means the value given at that end of the range is excluded from the interval. Whereas a non-reversed square bracket means the value given at that end ...
by toml_12953
Sat May 25, 2019 3:56 pm
Forum: DM42
Topic: Benchmark Speed?
Replies: 22
Views: 2118

Re: Benchmark Speed?

A couple of weeks ago, I was reading an old PPC Notes (or something similar), and there was a letter/article about someone doing a large prime number search on their TI-59, and it took about 5 hours. I did the same on my DM42 using a Rabin-Miller prime test wrapped in an outer loop and the whole th...
by toml_12953
Wed May 15, 2019 5:02 pm
Forum: DM42
Topic: Benchmark Speed?
Replies: 22
Views: 2118

Re: Benchmark Speed?

Calculators today are a lot faster than 50 years ago! And the DM42 runs somewhat slow in order to conserve the battery. Compare Free42 running on an iPhone, 64-bit code on a fast CPU; the numbers I get for those two benchmarks are 5,593,077 and 481,193. ¡Caramba! Any faster and that machine will gi...
by toml_12953
Wed May 15, 2019 4:58 pm
Forum: DM42
Topic: Benchmark Speed?
Replies: 22
Views: 2118

Re: Benchmark Speed?

grsbanks wrote:
Wed May 15, 2019 12:40 pm
The DM42 definitely IS fast. Depending on the operations you're carrying out, it'll run up to 400x faster than an HP-42S.
Looks like a lot more than 400 times to me!

HP 9100 Math final R2 value: 679
HP 9100 Trig final R2 value: 40
by toml_12953
Wed May 15, 2019 12:24 pm
Forum: DM42
Topic: Benchmark Speed?
Replies: 22
Views: 2118

Benchmark Speed?

Am I crazy or what (my wife votes YES) On https://www.hpmuseum.org/speed.htm there are a couple benchmarks. One for arithmetic and one for trig. I put the following programs into the DM42 and got 21,880 for the Math program and 3,081 for the Trig program! Is the DM42 really that much faster than the...
by toml_12953
Wed May 15, 2019 10:37 am
Forum: Usage tips, tricks and problem reports
Topic: DM42- clock losing time
Replies: 75
Views: 7380

Re: DM42- clock losing time

H2X wrote:
Wed May 15, 2019 4:34 am
SwissMicros, when are you going to make a DM-01? There seems to be considerable interest... :D

Image
I want the portrait version! :D
by toml_12953
Sun May 12, 2019 3:26 pm
Forum: OFFIMG library
Topic: Precision Time Source
Replies: 1
Views: 586

Re: Precision Time Source

TwoWeims wrote:
Sun May 12, 2019 3:11 pm
DM42 Cuckoo.bmp
When did they move the Black Forest to Switzerland? :D
by toml_12953
Sun May 12, 2019 3:24 pm
Forum: Usage tips, tricks and problem reports
Topic: DM42- clock losing time
Replies: 75
Views: 7380

Re: DM42- clock losing time

Walter wrote:
Sun May 12, 2019 12:40 pm

... one fixed and the other acting as a pendulum. 8-)
Old saying: The man with one watch knows what time it is. The man with two watches is never quite sure.
by toml_12953
Sat May 11, 2019 1:43 am
Forum: DM42
Topic: Thermal Paper?
Replies: 10
Views: 1136

Re: Thermal Paper?

Finally, it is "normal" for output to fade considerably, even after only a couple months, if the listings are left out and exposed to light. To preserve them, keep them in a file, or book, etc. to preserve the printout. I copy them on my printer's copier. The print comes out nice and dark and the c...