**Using a Scientific Calculator Mathematics Exam**~ With exams approaching this is a short article with reminders and advice for those who will take the math and the need to use a scientific calculator.

**Computer problems most frequently used are:**

- Set the computer to function properly

- Do the hand will be able to accommodate!

- Change memory modes calculator

- Rounding and inaccurate answers

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**Why use a scientific calculator?**

Scientific calculators use the same in order to perform mathematical operations. This order is sometimes abbreviated to help with conditions such BODMAS BIDMAS students and make their calculations to recall.

1. (Made all calculations in a backup first) Brackets

2. Operations (eg squaring, packaging, square root, sin, cos, tan)

3. Division and multiplication

4. Unless Removal

Note To use this sequence correctly a scientific calculator is not needed. The range should always be used in all mathematical calculations with a calculator or not.

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**Review of the scientific calculator**

There are two types of scientific calculator, the latest type Algebraic scientific calculators. Algebraic scientific calculators allow users to write calculations in the order they were written. Older scientific calculators need users, press mathematical operation after entering the number.

Pressing, for example, the square root of giving nine (three-reaction): [s]

Algebraic scientific calculator: [square] [9] [=]

Scientific calculator not algebraic: [9] [square] [=]

Both types of scientific calculator are fine for testing, but make sure you know how to use their own style.

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**If you are not sure if you have a scientific calculator or not, type:**

[4] [+] [3] [x] [2] [=]

If you get an answer of 14, then you have a non-scientific calculator from left to right.

If you get an answer of 10, then you have a scientific calculator as a first part worked proliferation.

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**Lost Computer manuals**

The computer manuals are usually very easily get lost or can never find as a test approaches. A frequent request is what you can do if you lose your computer manually? If there is an old Sharp or old Casio calculator manual then you can still find them on the internet. Even with search engines to find manuals, take some time - the link has information on new and old calculator manuals for Casio, Sharp, the Hewlett-Packard and Texas Instruments.

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**Calculator function**

Now that you have your computer manually, you can set up your computer for the correct settings. The default settings are usually:

**COMPUTER:**

(Use the MODE button - Key selection will not stat) NOT: SD or REG

**DEGREE:**

(Use the DRG MODE or button) NOT: RAD or GRAD

**NORMAL:**

(Use the function or setting and the arrow keys) NOT: FIX, SCI, ENG

Many computers have a reset button on the back, which can be pressed with a pen or paper clip to use when the original factory settings.

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**Common computer errors**

(A) do not press the DRG button by mistake and not trigonometry questions in degree mode. (If you forget to change then do more advanced operation DEGREES work!).

(B) Borrow change get an unknown computer or a new computer too close examination and may not be familiar with the key and the function.

(C) We should also all calculations in pressing the wrong button to try and check.

(D) Is rounded, before the end of the calculation. Store calculations in memory and use all the decimal places during calculations. If you use a rounded value too soon then they will lose accuracy.

(E) Lethe parenthesis calculations division to use (for example, if all the lower portion of the Group).

Some of the programmable computers mini computers. It is also a good idea to repeat all calculations just in case you press a button to make a mistake.

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