HP HP30S Scientific Calculator with Multi-Colored Faceplates

Perfect item. I wanted reverse Polish and it's my fault for not digging deeper into the specifications. Amazon search pointed me to this model and money was tight so I bought without doing my diligent research on the HP website. I needed a 33s or 32s.The product was flawlessly perfect and was shipped in exteemly safe packaging. All parts were like brand new. Loved that!!!

It's a decent calculator but I have two complaints. The 'answer' key it's not easily accesible, It's necessary to use the shift key to recall the last answer. In an algebraic calculator the answer key is very important but in the 30S it's necessary to use the shift every time!!!. Less frequently used keys are are more accessible. Also the 'ENG' key found on other calculators is not present, it facilitates a lot. The keyboard of Casio calculators is better designed, you should consider taking a look at them before buying this one. Oh, what's the point of having two extra faceplates???

I had this exact model calculator at work when after a few yrs it died. I shopped around and could not beat the price for this used one. When I received the calculator it was like new !! Very happy that I got it and saved a ton of money in the process.Chuck

i am an amazon prime member for two years now and probably purchase 150 or so products from amazon each year. in all that time i only wrote two bad reviews: one was for a dinky $2 product that arrived cracked and the manufacturer replaced it immediately, no questions asked. this is the second time - i ordered this $10.00 calculator just to have something extra to use around the house (besides my phone or computer). i used to own a solar powered HP calculator about 15 years ago and i loved it so i decided to give this one a try. it arrived fairly promptly but when i opened it up the calculator would not even turn on. it's not worth my time to repackage and walk to a post office to return a $10.00 item but at 7:35 in the morning it is not too much effort to give this warning out to all of you out there.

I hate to say this but I don't think HP has much control over their products since they're not made in-house anymore. I have tried really hard to like this calculator because it is an HP and I love my 32sII and 10B calculators. Although it's not as bad as the TI's and Casios, it pales in comparison to HP's former products. It does have some good points. It has a good key feel, not great but good. Much better than the current TI's. It has a lot of useful functions programmed in. But that's where it stops. Now the bad. No rubber feet. This thing doesn't stay still on the desktop. All of the clear functions aren't near each other. No set stats keys. You have to go through a list of stats calculations to find the answer you want. Having both memory keys and storage/recall keys is redundant. The quick reference guides use to be printed on the back of the calculator so you would never loose them. Now they are on a little card that's meant to stay in the cover every time you take it off. The thousand indicators are small and at the tops of the numbers. The slash when entering fractions is a small, backwards L symbol. They could have used a regular slash since the blocks on the entry line are made up of a 5 x 6 grid of pixels. It dosen't retain the display when turned off (however it retains recently used equations) although it does retain the display if it goes into auto shut off mode.I guess with computers and laptops every where the art of calculator design is becoming a lost art. The only reason I'm giving this three stars is because I rate it better than the competition's products which I would give one or two.

Excellent bang for buck. It's simple to use and costs less than the batteries it uses! Oh, the icing on the cake - it comes with batteries!

This calculator is very comfortable to use, and includes all the important features needed for high school math, but it is limited to that. The senior math-geeks will feel limited by this calculator and should spend more money, getting a higher model that will keep being useful more time.It features algebraic mode only, as opposed to RPN mode (which has become almost a conditio sine qua non in an HP calculator).For the average teen in high school is fine, though.

Needed it for a professional safety test and it was good

普通の人はあえてこれを購入する必要性はない。製造元が同じであるので、シチズンSRP-280Qと似ている部分が多い。内部演算が24桁であるのが利点か。SRP-280Qはもう購入できないし。表示部は見にくいわけではないが、かなり個性的です。好き嫌いがあるでしょう。超レアすぎて、購入前の現物確認は日本では無理です。コレクター、マニアにおすすめ。

珍しい色なので買ってみました。短所は計算時間が思ったより時間がかかります。また、液晶を正対してみる（手で持ち上げるとき）と数値が見えにくいです。机において椅子に座って使う分には数値も見えやすいです。あまりよいことを書いていませんが、計算しているときは、かわいげがあって気に入っています。

２０００年デビューのＨＰ関数電卓です。今後、これほど内部演算精度の高い関数電卓は出て来ないかもしれませんね。中国製のため、価格も安価なのでお勧です。