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A Scientific Calculator With Scientific Notation

# Scientific Calculator With Scientific Notation

When working in science, it can be difficult to maintain a level of precision that's useful for calculating results. Many mathematical equations have steps resulting in repeated multiplication. If a user presses the equal sign in order to calculate at a more specific interval, the calculation is interrupted, requiring the user to restart the calculation from the top.

### Notation

E notation is also known as exponential notation. E notation is the same as scientific notation where a decimal number between 1 and 10 is multiplied by 10 raised to some power. In E notation the "times 10 raised to a power" is replaced with the letter e in either uppercase or lowercase. The number after the "e" indicates how many powers of 10. In this example calculation we're adding 1.225e5 and 3.655e3:

Scientific notation is a way to express numbers in a form that makes numbers that are too small or too large more convenient to write. It is commonly used in mathematics, engineering, and science, as it can help simplify arithmetic operations. In scientific notation, numbers are written as a base, b, referred to as the significand, multiplied by 10 raised to an integer exponent, n, which is referred to as the order of magnitude: (Source: www.calculator.net)

### Example

The calculator spits out something that looks like this: 6E24. What in the world is that? Basically, when a scientific calculator has to deal with very large or very small numbers that it doesn't have enough room to display on its screen, it will use it's own form of scientific notation. In this example, 6E24 tells us that the answer is 6 followed by 24 zeros. In other words, the E24 in 6E24 tells us to move the decimal point in 6 twenty-four units to the right.

You can think of constants or exact values as having infinitely many significant figures, or at least as many significant figures as the least precise number in your calculation. Use the appropriate number of significant figures when you input exact values in this calculator. In this example you would want to enter 2.00 for the constant value so that it has the same number of significant figures as the radius entry. The resulting answer would be 4.70 which has 3 significant figures. (Source: www.calculatorsoup.com)

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