Texas Instruments TI-84 PLUS CE Graphing Calculator, Black (Frustration-Free Packaging) (84PLCE/PWB/2L1/A)

Just what my daughter needed

compact, lightweight, long battery life after charge

Does everything you need and more. Worked perfect in college math! Battery almost never died either.

I bought this for my daughter last August, not quite a year yet, and it will no longer charge. She left it plugged up for a few hours and it still showed this screen. I tried contacting support number listed, but basically they are people that sell electronic parts that go into the calculator and dont know anything about the calculator or warranty. These calculators are not cheap! So disappointed.

It is good, but a little expensive

Sin^2 θ+cos^2 θ=1

Extremely useful!

Good

Big, bright, color screen is a major improvement. The TI-84 Plus CE is essentially the same calculator as the very capable TI-83, but its thinner, faster, and easier on the eyes. Its an excellent scientific calculator for calculus, and it will probably wear out or be lost long before an upgrade is needed. My only complaint was the so-called frustration free packaging, which was not true.

Be warned the battery is not very big and seems to only last a few hours at most.