Got this in an email and thought it was pretty neat. Gives the G series a bit more math oomph!
http://www.ti.com/tool/msp430-iqmathlib
The Texas Instruments® MSP430 IQmath and Qmath Libraries are a collection of highly optimized and high-precision mathematical functions for C programmers to seamlessly port a floating-point algorithm into fixed-point code on MSP430 devices. These routines are typically used in computationally intensive real-time applications where optimal execution speed, high accuracy and ultra-low energy are critical. By using the IQmath and Qmath libraries, it is possible to achieve execution speeds considerably faster and energy consumption considerably lower than equivalent code written using floating-point math.
MSP430 devices supported by IQmathlib:
- MSP430F1xx
- MSP430F2xx
- MSP430G2xx
- MSP430F4xx
- MSP430F5xx
- MSP430F6xx
- FRAM Based Devices
Has string conversion, most trig functions, and looks easy enough to use.