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Fortunately, replacing the battery is a quick and simple process that can be done at home with just a few tools and some basic knowledge. Matrix and Vector Calculations: The Matrix mode allows you to perform matrix operations on matrices with up to 3 rows and 3 columns. Also the display on the Casio if far superior to that of the competition, very readable with no eye strain at all. Simultaneous and Polynomial Solver: This calculator will solve simultaneous linear equations with two unknowns, simultaneous linear equations with three unknowns, quadratic equations and cubic equations.New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging . The frequently-used shifted functions at the top-left of most keys have been imprinted using an odd yellowish-orange paint that under some lighting conditions is very hard to see. I think the 115ES (original) is OK, but (seemingly) unlike a lot of people here, I prefer the Sharp 516 (and even the 506).

If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. My speed tests use a continuous-sum function that closely reproduces function execution performed by a 2500-iteration Savage benchmark. Complex Number Calculations: Your calculator can perform the following: Addition, subtraction, multiplication, division.I am very happy with this purchase and I highly recommend this calculator to anyone who needs a scientific calculator for school and beyond. The label for the constant and conversion factor table is applied canted slightly on the inside of the hard cover. Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item. It’s accepted in most tests and exams (only one I wasn’t able to use t for was accounting, where we were only allowed a simple addition, multiplication, subtraction and divisions calculator). And probably as consecuence of the second drawback, in my case, it does not rest on 4 points (just in 3 points) so while pushing buttons on the calculator makes the calculator go up and down making loud "clack-clack" noises which annoy me.