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FutureStarrA Scientific Calculator With Square Root Button
If you are in need of a scientific calculator with a square root button and don't want to rely on rounding, this scientific calculator may be ideal for you. It can also provide you with a list of basic calculations such as seconds, degrees, time, time-speed-distance, and so much more.
But square roots are not the only roots you can have. You can also have cube, or third, roots. When calculating the cube root of a number, you're looking for a number that, when multiplied by itself three times, results in the given number. For example, the cube root of 8 is 2 because 2 * 2 * 2 = 8. For the cube root, you'll write a little three in the upper left corner of your root symbol. You can also have fourth, fifth, sixth, or other integer roots, as long as they're a positive real number. To operate a scientific calculator, locate the primary functions, like square root, sine, and tangent, since you'll be using these frequently. Additionally, familiarize yourself with the secondary functions above the primary keys, which can be accessed by pressing the “Shift” or “2ND” key. When dealing with longer problems, use the answer function to recall the last displayed answer to an equation. If you need to clear the screen, press the “Clear” button near the top of the keyboard. To learn how to switch between degrees and radians on a scientific calculator, keep reading
There is also an algorithm for square roots that resembles the long division algorithm, and it was taught in schools in days before calculators. See the example below to learn it. While learning this algorithm may not be necessary in today's world with calculators, working out some examples can be used as an exercise in basic operations for middle school students, and studying the logic behind it can be a good thinking exercise for high school students. As an example, suppose the area of a square equals 225 square meters, and the problem is to find the length of the sides. To find the length of the sides of the square, recall that the area of a rectangle is found using the formula "length times width equals area." Since all sides of a square are equal in length, the formula for area becomes "length times length," or "length squared equals the area of a square." So, to find the length of a side of a square using the TI-83 or TI-84, start with the yellow "2nd" key, and then press the x (Source: sciencing.com)