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The HP 15c:
A Problem Solver
The HP 15c Advanced Programmable Scientific Calculator is a powerful
problem solver, convenient to carry and easy to hold. Its Continuous
Memory retains data and program instructions indefinitely until you
choose to reset it. Though sophisticated, it requires no prior programming
experience or knowledge of programming languages to use it.
The HP 15c conserves power by automatically shutting its display off if it
is left inactive for a few minutes. But don’t worry about losing data—any
information contained in the HP 15c is saved by Continuous Memory.
A Quick Look at v
Your HP calculator uses a unique operating logic, represented by the
v key, that differs from the logic in most other calculators. You will
find that using v
makes nested and complicated calculations
easier and faster to work out. Let’s get acquainted with how this works.
For example, let’s look at the arithmetic functions. First we have to get the
numbers into the machine. Is your calculator on? If not, press =. Is the
display cleared? To display all zeros, you can press | `, that is, press
|, then −.
*
To perform arithmetic, key in the first number, press
v to separate the first number from the second, then key in the
second number and press +, -, *, or ÷. The result appears
immediately after you press any numerical function key.
*
If you have not used an HP calculator before, you will notice that most keys have three
labels. To use the primary function—the one printed in white on top of the key—just
press that key. For those printed in gold or blue, press the gold ´ key or the blue |
key first.
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