Enter the number 2, press the exponent key, then enter 3. The display should read 8. If it reads 9, that's because the calculator interpreted the input as 3 2 instead of 2 3. That means you need to enter the exponent before the base.
Some calculators have a key marked y x. Some numbers, such as billion, have too many digits to display on a calculator. When this happens, the calculator displays the number in scientific notation, using the letter E to denote 10 to the power of whatever number comes after it. For example, billion appears on a scientific calculator as 2. You can add, subtract, multiply and divide large numbers just as you would small ones, and the results will continue to appear in scientific notation a long as they continue to have too many digits to display.
Chris Deziel holds a Bachelor's degree in physics and a Master's degree in Humanities, He has taught science, math and English at the university level, both in his native Canada and in Japan. He began writing online in , offering information in scientific, cultural and practical topics. His writing covers science, math and home improvement and design, as well as religion and the oriental healing arts.
Negation : This key, denoted by NEG or - turns a positive number into a negative one. In this case, the scientific notation is 5. To turn a number into scientific notation, enter the digit number 5. Use your calculator for trigonometry with the "sin," "cos," and "tan" buttons.
To find the sine, cosine, or tangent of an angle, start by entering the angle value in degrees. Now, press the "sin," "cos," or "tan" button to get the sine, cosine, or tangent, respectively.
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