Scientific RPN Calculator - Page 6

timpham · 08/05/2009, 09:01 AM

also i'm not sure if this was discussed or not but when i have a notification on the bottom the calc doesn't scroll up or resize...

TheMarco · 08/05/2009, 10:19 AM

I know. My problem is I have yet to figure out what to do about that. I have no idea at the moment.

bruneti · 08/05/2009, 01:45 PM

I'm still using a Centro, but saw your app shown in the PreCentral article on Homebrew apps today. Thank you for developing this rpn calc for WebOS. This is a big deal for me as I await a gsm webos device. I use Kalk rpn calculator on PalmOS very frequently. I saw HP released a 15c emulator for the iphone, and I sent a request to them that they do the same for webos. Now I don't have to worry if they ever will. Good luck with your app development.

TheMarco · 12:21 AM

Preview of the CONV configuration screen!

Should be available after the DevCamp.

TheMarco · 08/06/2009, 11:11 AM

The unit converter is pretty much done and working perfectly! I'll release it after the DevCamp, probably with more new features done such as persistent memory and hopefully more.

TheMarco · 08/08/2009, 12:00 PM

Upcoming new release will have:

- fully persistent memory registers and statistics registers (this means you can close and restart the app without losing them)
- full blown built-in unit converter! No more need for a separate unit converter app!
- hitting period only results in 0. being entered

And: whatever I'll manage to add to the application during to PreDevCamp SF which starts in one hour after posting this!

TomJ · 08/08/2009, 07:02 PM

Not sure if I'm missing something, but I'm still having trouble entering a negative exponential. On an HP calc, to enter, say, 1.2e-5 I would press
1
.
2
EEX
5
CHS

but here, I get -120000.

Otherwise, it's looking really good!

Regards,
Tom

dwhitman · 08/08/2009, 08:31 PM

Quote:

Originally Posted by TomJ

Not sure if I'm missing something, but I'm still having trouble entering a negative exponential.

At least so far, the author hasn't implemented the traditional HP method of entering negative exponents. You can enter them by using the blue "g-shift" key before entering absolute value of the exponent (note the blue "EEX-" label on the bottom of the EEX key).

I'm hoping he'll eventually implement entering negative exponents the normal way, but this works correctly for now.

TheMarco · 08/08/2009, 08:39 PM

New PreDevCamp release posted!

Here's what's new:

- Improved haptic feedback. Now close to 'instant'
- Haptic feedback can be switched on or off at will in Preferences
- Basic Stack Inspector
- Full blown configurable unit converter button (the calc is now 2 apps in one!)
- Entering . now results in 0. for easy input of fractions
- Memory registers, statistics registers and all settings are now persistent (They get saved when the app is closed)

Enjoy!!!

TomJ · 08/09/2009, 12:24 PM

Quote:

Originally Posted by dwhitman

At least so far, the author hasn't implemented the traditional HP method of entering negative exponents. You can enter them by using the blue "g-shift" key before entering absolute value of the exponent (note the blue "EEX-" label on the bottom of the EEX key).

Great -- that'll work in the mean time. Thanks!

Regards,
Tom

dwhitman · 08/09/2009, 05:56 PM

I like the conversion utility, but after using it a few times, have a couple suggestions.

Most of the functions have their respective inverses available: e^x/ln, SIN/SIN-1, X^2, SQRT(X). The convert function needs an inverse too, so that if I'm set up to do Celsius-->Fahrenheit, the CONV-1 function does Fahrenheit-->Celsius.

This would increase the functionality AND give one an opportunity to back up from a mistake. (Oops, thought I was set up to convert parsecs to furlongs, but that looks suspiciously like foot-poundals to electron volts. Need to back up and try again!).

It'd be neat if the display briefly flashed info on what conversion was going on. Doesn't need to be long (30 msec?). Feedback is good.

TheMarco · 08/10/2009, 06:20 PM

Version B10 posted!

This version fixes:
- issues with the . key
- Temperature conversions now work (they didn't work before)
- a subtle (but kinda devastating for complex calculations) stack bug was fixed

Enjoy!

Also, dwhitman: I like the idea of inverse-CONV! I'll move y^x somewhere else and make that happen. Excellent idea! Will think about the display idea too.

Thanks for the great idea!

johncc · 08/10/2009, 07:32 PM

Quote:

Originally Posted by dwhitman

...
It'd be neat if the display briefly flashed info on what conversion was going on. Doesn't need to be long (30 msec?). Feedback is good.

Or, a string describing the currently selected conversion could be displayed in the status line at the bottom of the display.

Davide-NYC · 08/10/2009, 08:09 PM

I'm currently using Classic with MxCalc 12C to emulate an HP 12C calculator that I find indispensable on a day to day basis.

Is there any plan to release a 12C version? I'd be one of the first in line to purchase.

TheMarco · 08/10/2009, 08:37 PM

Davide-NYC yes, I'm seriously thinking about doing a pure financial calculator using the same core I have in this one. I want to finish this one 100% first though

quiksilver · 08/10/2009, 10:41 PM

If you are taking requests, I would like to put in one for a hp48g. Without seeing multiple rows of the stacks, its tough for me to use this for engineering calcs. I made a post a few pages back about a possible way to implement this.

If you decide to do something like that, I could help with functionality and logic, just not code. Let me know if you would consider this.

TheMarco · 08/10/2009, 11:03 PM

The advanced HP's are a bit too hard to emulate in just JS I think. It would surely be a hell of a job if it can even be done. I haven't seen anyone on the internet who managed to do this.

A second thing is the sheer amount of buttons that the 48 series have. I'm not sure how to fit all that on the small Pre screen.

When it comes to the stack: You DO know that there's a Stack Inspector right? You can use that to see the entire stack.

TheMarco · 08/10/2009, 11:22 PM

New release posted.

I came up with something better and more versatile than a 'reverse conversion': UNDO.

The UNDO button will roll back the stack to one operation back. This works on any operation, not just the converter

johncc · 08/10/2009, 11:22 PM

Quote:

Originally Posted by quiksilver

...
Without seeing multiple rows of the stacks, its tough for me to use this for engineering calcs.
...

This is intriguing. Can you expand on this. An example maybe?

quiksilver · 12:54 PM

Quote:

Originally Posted by TheMarco

The advanced HP's are a bit too hard to emulate in just JS I think. It would surely be a hell of a job if it can even be done. I haven't seen anyone on the internet who managed to do this.

A second thing is the sheer amount of buttons that the 48 series have. I'm not sure how to fit all that on the small Pre screen.

When it comes to the stack: You DO know that there's a Stack Inspector right? You can use that to see the entire stack.

Can you elaborate on how to use the stack inspector? I didn't realize that functionality was there. I don't need all of the functionality of the 48g but I need to be able to see more than one line of the stack.

Edit:
Nevermind. I figured it out. That inspector is pretty nice. Any chance you can reorder the items in the stack? And maybe make the stack button a primary button?

08/05/2009, 09:01 AM	#101 (permalink)
timpham Member Join Date: Jun 2009 Posts: 24 Likes Received: 0 Thanks: 24 Thanked 1 Time in 1 Post	also i'm not sure if this was discussed or not but when i have a notification on the bottom the calc doesn't scroll up or resize...
	Liked by

08/05/2009, 10:19 AM	#102 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	I know. My problem is I have yet to figure out what to do about that. I have no idea at the moment. __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by

08/05/2009, 01:45 PM	#103 (permalink)
bruneti Member Join Date: Feb 2008 Location: Michigan Posts: 39 Likes Received: 0 Thanks: 1 Thanked 3 Times in 3 Posts	I'm still using a Centro, but saw your app shown in the PreCentral article on Homebrew apps today. Thank you for developing this rpn calc for WebOS. This is a big deal for me as I await a gsm webos device. I use Kalk rpn calculator on PalmOS very frequently. I saw HP released a 15c emulator for the iphone, and I sent a request to them that they do the same for webos. Now I don't have to worry if they ever will. Good luck with your app development. __________________ Palm Pilot Professional --> TRGPro --> Treo 650 --> Centro (AT&T) + 4 Pixis on Sprint Family Plan
	Liked by

08/06/2009, 11:11 AM	#105 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	The unit converter is pretty much done and working perfectly! I'll release it after the DevCamp, probably with more new features done such as persistent memory and hopefully more. __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by

08/08/2009, 12:00 PM	#106 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	Upcoming new release will have: - fully persistent memory registers and statistics registers (this means you can close and restart the app without losing them) - full blown built-in unit converter! No more need for a separate unit converter app! - hitting period only results in 0. being entered And: whatever I'll manage to add to the application during to PreDevCamp SF which starts in one hour after posting this! __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by

08/08/2009, 07:02 PM	#107 (permalink)
TomJ Member Join Date: Aug 2009 Posts: 416 Likes Received: 0 Thanks: 41 Thanked 50 Times in 39 Posts	Not sure if I'm missing something, but I'm still having trouble entering a negative exponential. On an HP calc, to enter, say, 1.2e-5 I would press 1 . 2 EEX 5 CHS but here, I get -120000. Otherwise, it's looking really good! Regards, Tom
	Liked by

08/08/2009, 08:39 PM	#109 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	New PreDevCamp release posted! Here's what's new: - Improved haptic feedback. Now close to 'instant' - Haptic feedback can be switched on or off at will in Preferences - Basic Stack Inspector - Full blown configurable unit converter button (the calc is now 2 apps in one!) - Entering . now results in 0. for easy input of fractions - Memory registers, statistics registers and all settings are now persistent (They get saved when the app is closed) Enjoy!!! __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by

08/09/2009, 05:56 PM	#111 (permalink)
dwhitman Member Join Date: Apr 2007 Location: Pennsylvania, USA (GMT-5) Posts: 412 Likes Received: 0 Thanks: 41 Thanked 55 Times in 36 Posts	I like the conversion utility, but after using it a few times, have a couple suggestions. Most of the functions have their respective inverses available: e^x/ln, SIN/SIN-1, X^2, SQRT(X). The convert function needs an inverse too, so that if I'm set up to do Celsius-->Fahrenheit, the CONV-1 function does Fahrenheit-->Celsius. This would increase the functionality AND give one an opportunity to back up from a mistake. (Oops, thought I was set up to convert parsecs to furlongs, but that looks suspiciously like foot-poundals to electron volts. Need to back up and try again!). It'd be neat if the display briefly flashed info on what conversion was going on. Doesn't need to be long (30 msec?). Feedback is good.
	Liked by

08/10/2009, 06:20 PM	#112 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	Version B10 posted! This version fixes: - issues with the . key - Temperature conversions now work (they didn't work before) - a subtle (but kinda devastating for complex calculations) stack bug was fixed Enjoy! Also, dwhitman: I like the idea of inverse-CONV! I'll move y^x somewhere else and make that happen. Excellent idea! Will think about the display idea too. Thanks for the great idea! __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by

08/10/2009, 08:09 PM	#114 (permalink)
Davide-NYC Member Join Date: Apr 2008 Posts: 119 Likes Received: 3 Thanks: 4 Thanked 7 Times in 6 Posts	HP 12c? I'm currently using Classic with MxCalc 12C to emulate an HP 12C calculator that I find indispensable on a day to day basis. Is there any plan to release a 12C version? I'd be one of the first in line to purchase.
	Liked by

08/10/2009, 08:37 PM	#115 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	Davide-NYC yes, I'm seriously thinking about doing a pure financial calculator using the same core I have in this one. I want to finish this one 100% first though __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by Thanked By: DigitalNight

08/10/2009, 10:41 PM	#116 (permalink)
quiksilver Member Join Date: Jun 2009 Posts: 55 Likes Received: 0 Thanks: 1 Thanked 13 Times in 6 Posts	If you are taking requests, I would like to put in one for a hp48g. Without seeing multiple rows of the stacks, its tough for me to use this for engineering calcs. I made a post a few pages back about a possible way to implement this. If you decide to do something like that, I could help with functionality and logic, just not code. Let me know if you would consider this.
	Liked by

08/10/2009, 11:03 PM	#117 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	The advanced HP's are a bit too hard to emulate in just JS I think. It would surely be a hell of a job if it can even be done. I haven't seen anyone on the internet who managed to do this. A second thing is the sheer amount of buttons that the 48 series have. I'm not sure how to fit all that on the small Pre screen. When it comes to the stack: You DO know that there's a Stack Inspector right? You can use that to see the entire stack. __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by

08/10/2009, 11:22 PM	#118 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	New release posted. I came up with something better and more versatile than a 'reverse conversion': UNDO. The UNDO button will roll back the stack to one operation back. This works on any operation, not just the converter __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by

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