Calculator Necktie
By Mathteam53
Calculator Necktie
Fully customizable Calculator Necktie created by MATHTEAM53. Personalize this product with your own text and images (if the design allows it) and create a gift for yourself, a loved one, for your event or your business. Product Type Zazzle Tie. Style Standard Tie.
This tie includes all of the high-end calculators that I have used as an engineering student, a mechanical engineer, and a calculus teacher. The earliest calculator is a HP-45 scientific calculator that was purchased in 1973 for $400.00. It was worth every penny. The other calculators are graphing calculators: the HP-48sx, HP-48gx, TI-89, TI-89 titanium, and the TI-nspire. Also included is a Picket slide rule.
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