Texas Instruments TI-nspire cx CAS Graphing Calculator

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Texas Instruments TI-nspire cx CAS Graphing Calculator:
$120.00

I got this graphing calculator a couple of years ago while getting my Mechanical Engineering degree. Only used it maybe a month and realized I had to use a simple calculator on my license test, so started using that instead. Great condition, no scratches, and never dropped. This calculator will do anything. The CAS feature means it will solve algebraic equations and do limits, derivations, and integrations with unknown variables.