To celebrate i41CX+'s fourth and iCAS's second anniversaries, we are making this special edition of i41 available again for a limited time. The CAS engine in this release is functionally identical to the one in the critically acclaimed i41CX+ and iCAS with just some limitations.
i41 is based on the highly rated i41CX+ but with its keyboard pre-configured to meet the needs of casual and moderate RPN scientific calculations and without the iPad specific optimizations of i41CX+ and iCAS. i41 is a showcase of the power and flexibility of its fully featured parent, i41CX+. Even without the advanced features of i41CX+, i41 CAS is a powerful RPN calculator for the iPhone and iPod touch that will meet many users' calculation needs in a comfortable portrait form factor.
If you're an iPad user, please consider i41CX+ or iCAS which are optimized for the iPad.
- RPN logic with 4 element stack
- Powerful and flexible Computer Algebra System (CAS) supporting symbolic, arbitrary precision, scalar, vector, and matrix algebra calculations, 2D/3D plotting, and much more
- Full-screen text editor with configurable font style and size, color scheme, 15 key macro keyboard pre-configured for simple CAS use, and a numerical keyboard for quick calculations
- Arithmetic, trigonometric, mathematical, time, and statistical functions
- 52 main memory registers for temporary storage of data
- Statistical functions (MEAN, SDEV)
- Time functions (HMS, HR, HMS+, HMS-)
- 12 character display
- Copy and paste support (X register and Registers Table)
- Automatic decimal and thousands delimiter separator style
- User adjustable feedback sounds volume
- Option to use system key click sounds (audible on 1G iPod touch)
- Extremely responsive and animated key clicks with optional glow feedback effect
- Beautiful and clean user interface
NOTE: Because i41 does not have a persistent state, the FIX/SCI/ENG setting is set to 4 decimal places every time the application is launched. Data registers are also cleared every launch. If persistent state is important to you, please consider purchasing i41CX+ or iCAS.
