What was the first calculator invented called?
If you mean electronically, then it would still be called a calculator. But, before that, people used the abacus, which had lots of sliding thingies and such.
How do you calculate the mean in maths?
In Mathematics there are three types of average: the Mean. Median and Mode.
The Mean average is the first average which people meet and is just called the average at that point.
The mean is the sum of all values in a set divided by the number of values.
For example, the mean of the set {1, 2, 2, 4, 7, 9, 11}:
The sum of the values is 1 + 3 + 4 + 6 + 7 + 9 + 12 = 42.
There are 7 numbers in the set.
Therefore the mean = sum of values ÷ number of values = 42 ÷ 7 = 6.
How do you use square roots on your TI-30X IIS calculator?
Well i had the same qustion first u press 2nd then you press the button that looks like this ^ then put your number inexample: 3 2nd ^ 78 it would be 4.272658682
When were calculators first mass produced?
the first mass produced calculator is the arithmometer developed by Charles xavier thomas de colmar in 1820 in France. this device performed the same type of computations with leibniz's stepped reckoner but was more reliable
How do you use a calculator for the law of sines say you have SinB.96 how to you get B?
well in order to get sine b you will have to got to your calculator and reverse the equation ... in other words on the calculator you will see sin-1 you will hit that and in the parenthesis you put .96 .so it should look like this sin-1(.96) and you qet your answer .!
What symbol do you use for greater than and less than on a graphing calculator?
EDIT: Instead of doing what the person below said, you could hit [2nd] [MATH] and a screen comes up with the > and < and the ones with the line under it for greater/equal to and less/equal to
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You use the < and > symbols.
For ti 84, you go to 'Y=' . And then where it says 'Y1' and 'Y2' down the screen, go over to the left side and press 'enter'.
-For greater than, click it until you get a little black triangle pointing up
-For less than, click it until you get a little black triangle pointing down
For "greater than/ less than" symbols, on the TI-84 Plus: Hit "2nd", then "MATH" for the "TEST" menu. Should be right there.
What year was the first pocket calculator made?
I saw the first modern electronic pocket calculator in 1967 when I was attending engineering school at the University of California in Berkeley. It was made by Hewlett-Packard.
How do you calculate an antilog on a TI-86 calculator?
The anti-log is "10^x" listed above the "LOG" key on a TI-86 calculator. All you have to do to use it is press the yellow "2nd" key (this means shift) and then press the "LOG" key.
It all depends if your prepare baked or mashed potatoes for a dinner with family.
On the calculator what does the plus slash minus button do?
It changes the sign of your answer between positive and negative. For example, if your calculator says 50 and you press the +/- button, it will change to -50. Press it again and it changes back to 50. It is useful if you need to multiply several numbers together and then subtract them from another number. For example say you multiplied some numbers on your calculator and got 52.932646 and you need to subtract that from 100. Instead of clearing the calculator and typing 100 - 52.932646, you could just press the +/- button to get -52.932646 and then add 100, and you will get the correct answer. It saves a step.
How do you enter the equation of an ellipse into a graphing calculator?
Since it is not a function, you need to solve of y and you will have TWO equations. A plus and a minus one. FOR EXAMPLE the ellipse x^2/4+y+2/16=1 you could solve it as y^2/16=1-x^2/4 then multiply by 16 y^2=16(1-x^2/4) Now you have y=+ Square root of (16(1-x^2/4)) AND y=-Square root( 16(1-x^2/4)) IF you enter both of those and graph them on the same graph you will have an ellipse.
What problems can you not solve on a calculator?
Usually you can not solve math problems with more than eight numbers at a time It is usually that way with most calculators
What is the difference between a calculator and a pencil?
A calculator, at least the modern ones, are devices that will "crunch numbers" and find answers to mathematical processes we instruct them to undertake. They have programs that they run to perform mathematical operations on command (but according to their limits). A pencil is a writing device that we must power up with our body and our mind.
How do I calculate the square root of 32 divided by 2 without the use of a calculator?
sqrt(32)=sqrt(16 x 2) = sqrt(16) sqrt(2) = 4 sqrt(2)
Dividing 4 sqrt(2) by 2 , you get 2 sqrt(2) . This is the answer.
When using the TI-83 or 84, you connect the wires that should come with the calculator. Then, you must press Second and the button down 1 and right 1 on both calculators. On the receiving calculator, press the right arrow key and then Enter. On the sending calculator, select the programs you want to send and press Enter.
How do you put notes into graphing calculator?
If you have a TI graphing calculator, you can install the NoteFolio app from Texas Instruments. It is located here:
http://education.ti.com/educationportal/sites/US/productDetail/us_notefolio_creator_software.html
You can transfer notes back and forth between your computer and your calculator. You can even create new notes on the calculator itself.
* Also, if you are interested, you can download a software package for your TI graphing calculator to help you improve your score on the SAT test at www.calc-tech.com . It's called the SAT Operating System (SAT_OS) and can be used during the actual test to reduce time on math problems and improve the accuracy of your calculations.
How can you find the greatest common factor using a calculator?
Unless your calculator has a key for it, the only method I know is awkward. Example : Take 24 and 114. Divide 114 ÷ 24. It gives 4.75. Subtract the integer part (4) to keep only the fraction part (0.75). Remultiply by 24. This gives 18. Do the same thing with the smallest number 24, and the new number 18. Divide 24 ÷ 18. It gives 1.33333333. Subtract the integer part (1) to keep only the fraction part (0.3333333). Remultiply by 18. This gives 12. Do the same thing with the smallest number 18, and the new number 12. Divide 18 ÷ 12. It gives 1.5. Subtract the integer part (1) to keep only the fraction part (0.5). Remultiply by 12. This gives 6. Do the same thing with the smallest number 12, and the new number 6. Divide 12 ÷ 6. It gives 2.0. When there is no fraction part left, the game is over, and the smallest number found is the GCF. So the answer is 6. Another example with 17 and 35. Divide 35 ÷ 17. It gives 2.05882352941. Subtract the integer part (2) to keep only the fraction part (0.05882352941). Remultiply by 17. This gives 1. Start again with the smallest number 17, and the new number 1. Divide 17 ÷ 1. It gives 17.0. There is no fraction part left, so the answer is the smallest number found, which is 1. When two numbers have no common factors, the answer will always be 1, since you can divide anything by 1.
Where is the exponent key on a calculator?
It is the upwards arrow, it is the same symbol on the "6" key of your keyboard.