Mobile App
Mobile App
(OP)
Is anyone familiar of a mobile app that can do operations with common engineering units?
For example doing something like this would be great:
sqrt(5 W/5 Ohms) = 1.58 A
For example doing something like this would be great:
sqrt(5 W/5 Ohms) = 1.58 A





RE: Mobile App
RE: Mobile App
On that note, has basic math in your head fallen out of fashion? 5 of anything divided by 5 of anything else is 1 of something. Square root of that had better be 1 of something else.
You should know what units are going into an equation as well as what units to expect out.
Dan - Owner
http://www.Hi-TecDesigns.com
RE: Mobile App
SMath Studio would be the best bet, but the author still doesn't seem to want to go there:
http://en.smath.info/forum/default.aspx?g=posts&am...
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RE: Mobile App
sqrt(5 W/2 Ohms) = 1.58 A
Sorry guys. SMath doesn't have that capability on the mobile version does it?
RE: Mobile App
SMath is only available for PPC-based devices, and hasn't been updated to the latest rev.
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RE: Mobile App
Here's a screen capture from my phone just now...
RE: Mobile App
“Know the rules well, so you can break them effectively.”
-Dalai Lama XIV
RE: Mobile App
RE: Mobile App
No connection required.
A big HP team back in the day invested a whole lot of time developing a pretty sophisticated math programming environment which was easily accessible through a tiny interface. Their efforts still pay off today imo. There are some ups and downs. Downs include a little bit of a learning curve and limited graphics. Ups are many... instead of getting carried away on those, I'll just link to my previous discussion here:
thread724-313111: Engineering Apps for Android phone
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(2B)+(2B)' ?
RE: Mobile App
In the Wolfram Alpha screenshot above, you can see that it has correctly calculated not only the value "1.581" but also the correct units "A (amperes)". That's cool.
RE: Mobile App
=====================================
(2B)+(2B)' ?
RE: Mobile App
Google: sqrt(5 watts / 2 ohms)
Response: sqrt((5 watts) / (2 ohms)) = 1.58113883 amperes
The online calculators can also tell you such nonsense as:
26 Parsecs = 4.71428 × 1017 smoots
(I'll let you look-up the definition of a smoot)
RE: Mobile App
1 - RPN
2 – Algebraic
3 - Solve Dialogue.
The solve dialogue works with stored equations and variables, or creates them if they are not available. Named equations and named variables are stored in nested subdirectories, so you can build your own library of equations, and copy variable values or equations between subdirectories if you want. Structured programming is supported, along with a ton of built in math tools (see the link)
The built in units do not include smoot unfortunately
The screens in the attached powerpoint came from the free PC program HPuseredit (version 4) which coordinates with free PC HP48 emulator program Emu48. You can use these tools to build and debug programs on pc and transfer to phone if you are so inclined. And of course Droid48 is also free.
I like it a lot, enough that I enjoy telling other people about it. I’m not saying it’s the best for this purpose or the best for any purpose… these things are matters of personal preference.
I’ve never tried Wolfram.
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(2B)+(2B)' ?
RE: Mobile App
Gasp!
You're quite talented in math, and yet you've not yet tried Wolfram Alpha?
I think you'd like it. Like Google Calculator, it has smoots. But it's vastly more capable. It is also filled with vast amounts of real world data.
RE: Mobile App
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RE: Mobile App
http://www.engineering.com/DesignSoftware/DesignSo...
RE: Mobile App
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