Ti-84 Evo(education.ti.com)
569 points by thatxliner | 456 comments
Texas Instruments product page for the TI-84 Evo graphing calculator, with links to an online calculator, TI Connect Evo software, accessories, and support.
#calculators on Hacker News
2 stories tagged calculators, newest first.
“A calculator app? Anyone could make that”(chadnauseam.com)
1683 points by pie_flavor | 407 comments
Blog post retelling a tweet thread on why building an accurate calculator app is hard, covering precision issues like (10^100)+1-(10^100) returning 0.