What does CX and CAS mean with Texas Instruments TI-Nspire calculators?

In Texas Instruments TI-Nspire calculators, "CX" refers to the color model of the calculator, which features a color display and enhanced graphical capabilities. "CAS" stands for Computer Algebra System, which allows the calculator to perform symbolic manipulation of mathematical expressions, such as simplifying equations and solving algebraic problems analytically. Together, the TI-Nspire CX CAS model combines both advanced graphical and algebraic functionalities, making it suitable for higher-level mathematics and science applications.