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drdjones

drdjones

1 898 objets vendus
157 abonnés
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Calculator collector and calculator user in chemical research over the past 50 years, primarily HP calculators. Enjoys programming calculators. In recent years bought, repaired, and sold calculators and calculator paraphernalia. Amateur mathematician and former Research Chemist and Professional Engineer. Over the last 25 years has published several mathematically-based articles for engineers on tank volumes and tank wetted areas.
Lieu : États-UnisMembre depuis : 22 mars 2001

Notes d'évaluation

12 derniers mois

Positives184- d'évaluations positives au cours des 12 derniers mois
Neutres0- d'évaluations neutres au cours des 12 derniers mois
Négatives1- d'évaluations négatives au cours des 12 derniers mois

Évaluations détaillées du vendeur

Moyenne pour les 12 derniers mois

Description exacte
5.0
Frais de livraison raisonnables
4.8
Livraison rapide
4.9
Communication
5.0

Toutes les évaluations (2 653)

r***1 (0)- Évaluations laissées par l'acheteur.
Dernier mois
Achat vérifié
Arrived quickly, well packaged. Works perfectly. Battery compartment nice and clean. Even came with a few programs (thank you). Definitely recommend this seller.
wtylerbay (213)- Évaluations laissées par l'acheteur.
Dernier mois
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Quick payer, smooth transaction.
daruh-9004 (1011)- Évaluations laissées par l'acheteur.
Dernier mois
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Outstanding buyer super fast payment too!
b***n (4)- Évaluations laissées par l'acheteur.
Dernier mois
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Item was purchased exactly as described. Would recommend.
zion717 (629)- Évaluations laissées par l'acheteur.
Dernier mois
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Quick response and fast payment. Perfect! THANKS!!
-***- (11956)- Évaluations laissées par l'acheteur.
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Thanks for the smooth transaction
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Avis (4)
26 juillet 2011
Very nice for ft-in-frac calculations, but should retain data when off
This is a very handy construction calculator with many useful features for the trades. I have used it in the steel detailing business and have found it invaluable. The ease of data entry for 16ths of an inch makes it very efficient. The ease of calculation of circle functions is very nice. The feature I have found to be the most frustrating is the loss of data when the calculator turns off after a short time of inactivity. The memories are retained, but in-process calculations are lost. When powered back up, it would be nice if the latest in-process calculated results were brought back to the display.
03 décembre 2013
A fantastic calculator for reasonable cost
For the money, this is an outstanding calculator. It is very fast and has a reasonable amount of programming capability, although programming is somewhat cumbersome. It has Algebraic, Chain, and RPN operating systems allowing users of any calculators to feel at home operating it. It has a fine complement of mathematical and statistical functions rivaling usual scientific calculators to go along with its fine financial capabilities.
New OEM Samsung EB-L1G6LLA Battery Galaxy S3 S 3 III i9300 i535 i747 L710 T999
11 septembre 2019
OK
Works
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