Estimated by Thu, 26 Jun - Tue, 1 JulEstimated delivery Thu, 26 Jun - Tue, 1 Jul
Returns:
30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.
Condition:
NewNew
The Casio FX-991CW Advanced Scientific Calculator in black is a compact and efficient tool for solving complex mathematical equations. With a regular display size and powered by solar energy, this pocket-sized calculator is ideal for professionals in various industries. The calculator features advanced functions such as calculus and is designed by the trusted brand Casio, ensuring accuracy and reliability in calculations. The Casio FX-991CW is a practical and reliable choice for those who require a high-quality scientific calculator for their work or studies.
Casio FX-991CW the best calculator I have had - so far
Online manual is ok but the pdf version is better.
The physical constants are not explained as to their meaning. Maybe Casio assume if you need the value you'll know the symbol and the units. I noticed at least one value is fractionally different from the latest values.
I hope the next generation of calculators will have units and unit conversions built into the arithmetic e.g. X feet squared times Y psi equals Z kN per metre squared.