You only have a certain number of digits your calculator can hold in memory, so some numbers have to be rounded. Of the calculating tools we might use, such as hand calculators and personalĬomputers, some numbers cannot be represented exactly. Unfortunately, it is our sad duty to inform you that once you use a digital computer such as a scientific calculator or a PC or a Mac or a workstation, most of these properties are no longer true! If you remember the properties of number systems we mentioned in the previous section (closure, commutivity, associativity, etc.) we also mentioned that these properties are useful to rearrange algebraic expressions to make it easier to solve various What will you do? Complain to the professor that you can't take the exam because your calculator doesn't work or can't be found? Good luck onįinding any sympathy! You just might have to borrow someone else's calculator on short notice, and maybe that calculator does things just a little differently or has its buttons in a different design. If just before a big quiz or test your calculator batteries go dead, or your calculator grows legs and walks off. While you might agree that it is important to know a lot about your own calculator, why do we say that you need to know something about calculators in general? Well, think what might happen Wouldn't hurt to know a thing or two about calculators in general.
Scientific chemistry calculator how to#
It is very important that you become very familiar YOUR calculator, so that you can use it as a helpful tool in solving a variety of problems and it helps to know how to use the calculator before you are under the time pressure of a test! It also Now we need to spend some time being sure you know how to use the rest of your calculator In the previous section, we reviewed a little about numbers and representations, and if you used your scientific calculator to repeat the exercises in the Working with Numbers section, you probably learned a little about where certain buttons were You have any specific questions on how your calculator works.
Scientific chemistry calculator manual#
It might be helpful to consult the operator's manual that came with your calculator if Pay special attention to the order of entry of the key strokes. Scientific calculator, and to use your calculator to solve some simple problems. In this section you will be asked to explore the functionality of your
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