Nintendo DS software

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is a LAN messenger service developed by Nintendo. It is preloaded on the Nintendo DS, Nintendo DS Lite and Nintendo DSi. Up to sixteen people can paint and/or text chat with each other using it, connected wirelessly through a LAN-only, system-to-system wireless connection. It allows for simple input of keyboard text and written text/drawings. PictoChat received an Excellence Prize for Entertainment at the 2004 Japan Media Arts Festival.

Mathomatic is a free, portable, general-purpose computer algebra system (CAS) that can symbolically solve, simplify, combine and compare algebraic equations, and can perform complex number, modular, and polynomial arithmetic, along with standard arithmetic. It can perform symbolic calculus (derivative, extrema, Taylor series, and polynomial integration and Laplace transforms), numerical integration, and can handle all elementary algebra except logarithms. Trigonometric functions can be entered and manipulated using complex exponentials, with the GNU m4 preprocessor. Not currently implemented a