Calculators

sqrt(8)

= sqrt(4) * sqrt(2)

= 2 * sqrt(2)

= 2 * 1,4142

2,8284(..)

To calculate the square root of 2 I needed a calculator.

This number is irrational (you can prove that) which means there is no repeating part in the decimals of the square root of 2, and not in the square root of 8 either.

ENIAC was the first general-purpose electronic computer. Calculating machines had been built before this, but they were mechanical, built for specific tasks and/or used gears to calculate numeric values. ENIAC used vacuum tubes to switch current, and worked with a numbering system other than base 10, which is what humans used. Look ENIAC up on Wikipedia for more information.

The reason why the world needs math is because, almost everything we do involves math. Either its work, or school. Every one needs math. Math may be hard to some people but all u got to do is pay attention to what your teacher says.

Clever question! I think that people learn from their mistakes and often try to enhance what they have made. So, same is the case with this. Calculators were invented long before mobile phones. So, they now have ENHANCED that. It helps to decrease the distance a user will have to cover when moving to the bottom most side to press 1.Because users, usually, press numbers then operators so it would help if you start numbers from the top. Also, logically, digits start from top to bottom. --------- Yeah Its Rite Most n Appropriate Explanation. --------- No I strongly oppose it. First we have to think logically? Lemme ask this first, why does the needle move in clock wise direction, why not anti clockwise? Because what the former thing way the sundial, and it was invented in north and there the shadow goes anticlock wise. If it had been invented in south, we would have a clock with needle moving in anti-clock wise direction. Like wise, what was before calculator? It was abacus, in that the number were from 987.. so is calculator. I hope this is the most apt answer. Nothing like I appose others opinions.

you cannot. YES YOU CAN, DOWNLOAD THIS FREEBIE FROM THE WEB: XNEAT WORKS LIKE A CHARM PAUL W. MASTENBROEK TORONTO

The abacus is a mathemetical instrument used to calculate. It can do anything from addition ,maltiplicaiton, division, subtraction to calculating fractions. It is an ancient Chinese instrument used in shops for billing. Today there are many classes to teach children about the abacus and how it functions. Many adults too have found their intrests lying here and decide to work on this for their career. There are international, national, state, district, city, institution level competitions in which about a thousand student will participate. Believe me it is great fun.

Divide by thirteen.

The TI-35X and the TI-36X are pretty much alike. The only difference between them is the 35X has batteries while the 36X uses solar cells. That's the only thing. The manual is available at this website, http://education.ti.com/educationportal/downloadcenter/SoftwareDetail.do?website=US&tabId=2&appId=6138

Depending on the calculator, it can be :

sqrt(number) = answer, or

number, press sqrt, answer.

examples : sqrt(49) press enter = 7

or put 49, press sqrt, answer is shown as 7.

Use the up and down arrow keys to scroll up and down, and use the left and right arrow keys to scroll left and right. If you want to scroll up and down faster, press 2ND ALPHA and then use the up and down arrow keys.

It is an improvement upon previous models of calculators, and the Silver Edition is just a fancy way of saying it is better. The TI 84 plus Silver Edition is a graphing calculator with a relatively large memory capacity and relatively fast processor.

force x perpendicular distance from a specific, defined point

Yes you can buy a graphing calculator. I know they are sold at places like Walmart, and Target and most of them are around $100 but go on sale before school starts for around $90. TI-83 and TI-84 graphing calculators are really good.

This depends on what function, and what TI calculator.

The TI-83 does not have the cot button, however, if you type 1/tan( then this will work the same as the cot since cot=1/tan.

The other way to do this is to type (cos(x))/(sin(x)) where x is the angle you're looking for. This works because cot=cos/sin

Press 2nd (second) + on. That will do the job.

365^P5/365^5=

The answers varies by calculator. However, most calculators capable of calculating exponents (such as scientific or graphing calculators) have a button with the symbol^. You can use that button to calculate exponents like this: a^x, where a and x are numbers. For example: 2^2 = 4. And 3^3 = 27.

Type your answer here...Casio is made in Japan and Malaysia

First, it could be flat out broken, in which case you will need a new one. Check if this is the case by first making sure there are new batteries in the calculator. Second, make sure your screen is not just really bright. To do this, push the on button and then repeatedly push the 2nd and then up arrow to make the screen darker. If this doesn't work after a short time, its not the problem. You could finally try to turn on your calculator by resetting it. This involves taking out the batteries for a few minutes. If that doesn't work, your calculator appears busted and you probably need a new one.

Press MODE. The second line will say FLOAT and then have the numbers 1-9. If FLOAT is selected, the calculator will not round. If a number is selected, the calculator will round to that number of decimal places. For example, if you wanted to round everything to 3 decimal places, you would select "3".

You can also use the round command. To get to it, press MATH, select NUM and the top and choose the second option, "round(". Type the number and then the decimal place you want to round to, separated by a comma. For example, if you wanted to round 2.569 to 2 decimal places, you would type

round(2.569,2)

First, it's not a slide "ruler," as was stated in the original question. It's a slide rule. Second, you don't measure anything with a slide rule. It's not a measurement device; it's an obsolete calculating device. It was used to simplify multiplication and division. Correction to original answer: The answer above (and the classification as a math category question instead of a mechanical measurement question) is based upon ignorance of the nature of, or existence of the slide caliper ruler. A slide caliper is a measuring tool used in mechanical applications. The caliper (not rule) consists of a metal strip or bar about 6.5 inches ling and 1/2 inch wide. One end has an extension about 1.5 inches long at right angles to the main bar. The main bar is inscribed with a scale, in inches - generally in 16ths of an inch. Affixed to the bar is a slide, with a similar extension. This second extension comes into contact with the first at the zero point. In the slide is a window, which is inscribed with a scale which is at a ratio of 7/8 to the scale inscribed on the bar. When the slide ruler is used to measure the outside dimension of an object the two extensions are in contact with the object on opposite sides. The dimension is read in a window in the slide. In reading the scale, it is noted that one of the inscribed lines on the 7/8 scale window will be virtually in line with one of the lines on the bar. The measurement is read by taking the measure at the "zero" line on the bar, and adding a factor derived from the matching lines. (That procedure is not known to me, but involves reading the "vernier scale".) The answer to the question as originally asked would depend upon whether the word "ruler" was intended to denote the slide caliper measuring tool, or - as assumed in the original answer - the slide rule formerly used in mathematical calculations.

Pascal

if u have a regular calculator, you cannot put y =, if u have a graphing calculator, then you press the "y =" button

It is called simple math.

On paper, write down the number you wish to multiply on the first line.

On the second line, place the number you wish line one to be multiplied by.

1234

X 3

------

Starting from the right place, multiply 4 X 3. The answer is 12. Since the answer is more than 9 you write 2 on the answer line and "carry" the 1 to above the 3.

Now continue with the 3 X 3 (9) plus the 1 that was carried over for an answer of 10. Again, 0 goes on the answer line and "Carry" the 1 to above the 2.

The next figure is 2 X 3 + 1 = 7. 7 goes to the answer line.

Finally, multiply 1 X 3 = 3 and write it on the answer line. The complete answer is 3702.

To check your answer, divide it by the multiplier (3) and your answer should be 1234.