Sunset Lake Software - Comments for "Pi Cubed 1.1 now on the App Store"

I cannot find Grafly Has it

I cannot find Grafly

Has it been taken off the App Store?

If so what can I use in place of it.

Looks pretty amazing. The

Looks pretty amazing. The amount of apps on the iphone is absolutely staggering. Things like this are just so helpful. Thanks

Thanks a lot for this useful

Thanks a lot for this useful post, the info is pretty good and this applications seems great i will recommend it to my nephew, he was looking for an app like this.

Great application in deed. I

Great application in deed. I too generally don't purchase applications. But this was certainly worth the money. Thanks for it.

Yeah! It's truly amazing. But

Yeah! It's truly amazing. But Mathematica is far more powerful.

very interesting - looks like

very interesting - looks like a great aplication.

In fact, that's the very next

In fact, that's the very next thing I'm working on. I will be reworking the underlying data model to support undo, which should also significantly reduce the startup time for the application.

My current plan is to use the iPhone 3.0 "shake-to-undo" interaction method to trigger the undo / redo actions.

I usually don't pay for

I usually don't pay for applications but I bought pi cubed after looking at reviews and I have no regrets. Great application.

But sometimes I wish there was an "undo" button somewhere. When I tap a function I didn't mean to and want to go back a step, life gets a little hard. Do you plan on adding anything like that by any chance?

The only libraries GiNaC use

The only libraries GiNaC use are CLN, GMP, and the standard library. All these are C++ libraries. I deliberately compiled all these from source as if I was not using an intel machine.

Hopefully performance won't be an issue, but I'll need to sign up as a developer to check, I guess!

And yes, the user interface will most likely be the vast majority of the programming that I do. After watching the video for Pi Cubed, I was kind of inspired to write something like it myself, whether it works on an actual iPhone or not to me isn't as important as writing the program itself.

It'll be the first thing I've ever written for the iPhone, so I'm treating it more as a learning exercise than a lucrative business venture.

Thanks for your replies by the way!

Have you tried this on an

Have you tried this on an actual iPhone or iPod touch? Beware that you may run into incompatibilities when you actually install this on an iPhone, whether from Intel-specific assumptions in their code, or from libraries that aren't present on the device. The Simulator uses the full capabilities of the Mac, including elements that may not be there on the iPhone itself.

Performance is a second concern. Generally, low-level C libraries perform well, but for the more complex operations you're describing, you may run into some issues with hardware limitations in memory or CPU speed.

Finally, there is the user interface. This was the most important component to me, as I had tried products like Mathomatic (which leverages an existing CAS library) and found them difficult to use in the kind of situations I use my device. That's why I came up with my own custom interface and layout engine, because I wanted to have something more than a plain text field for input and evaluation of these calculations. More than half of the time spent on this application was in the crafting of the user interface. Even with a solid math parsing library, you'll need to make it accessible to a touch interface somehow.