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Calculators
A calculator is a hand-held inexpensive electronic device used to perform the operations of arithmetic. The simplest calculators can only do addition, subtraction, multiplication, and division, while scientific calculators can handle exponential operations, and trigonometric and logarithmic functions.
1,648 Questions
Why is the calculator important?
Without it you wouldn't be able to find the square roots of prime numbers.
What was the first calculator used for?
the first ever calculator was said to be used by Blaise Pascal's father to count his money.
What is the name of the first manual calculator?
i am used to count some call this a manual calculator
it's also called abacus
Is the calculator always right?
It really depends on the calculator. As long as you make sure you punched in the right numbers. To check if your calculator is broken, press the number 8 and if some pieces of the corner of the number is faded, then it's time to buy a new calculator.
yes it is always right just as long as you are typing in the right numbers that you need to. :) brandi
The solutions (x,y) to the first equation form the circle centered at 0, with radius 5 (the square root of 25). Solving for y, you can see that it consists of two functions of x: y = sqrt(25-x^2), y = -sqrt(25-x^2). Now you must show that y = -0.75x + 6 is tangent to one of them. That is, show that for one of the curves, at some point x', the slope is -0.75, AND the line intersects the curve at x' (that is, the y-values are equal for the curve and line, at point x'). Compute the derivative of each curve, and find for what x' it is equal to -0.75. (For each derivative, there is an easy integer solution which will work. No calculator needed.) Then check if the line intersects the curve at the point x' you find (for each curve). (It will work for one of the curves.) So you just showed that at point x', one of the curves has slope -0.75, and the line (also with slope -0.75) intersects the curve at x'. Therefore, the line is tangent to the curve at point x'. Hope that helps.
Who was invented the calculator?
The calculator has a long and rich history. Trying to figure out who invented the first calculator is a difficult question.
Calculating devices, such as the abacus, were used in ancient times. The abacus was invented in 3000bc by the Chinese.
Eventually, other calculating devices were invented: such as the sector and the slide rule
Mechanical calculating devices began to be developed in the 15th century. Wilhelm Stickard invented a mechanical adding machine in 1623.
Blaise Pascal worked on the calculator for three years between 1642 and 1645. This calculator, called the Pascaline, was like a mechanical calculator of the 1940s. He created it to help his father with tax collecting.
In 1673, Leibniz invented the first calculator capable of performing the 4 fundamental arithmetic operations: addition, subtraction, multiplication and division.
The "push button" calculating machine was not invented until 1902, by John Dalton. These were called "Dalton adding machines".
Bell labs became the next major player in the history of calculators, as the history of calculators begins to merge with computers.
Researchers at Bell Labs begin to investigate the potential of using binary to perform arithmetic. A rudimentary mechanical device was created for adding 1-bit numbers together as the first proof of concept. Soon, George Stibitz creates the first proof-of-concept 1-bit adder using telephone relay technology.
2 years later, the first 16-bit adder is invented, using vacuum tube technology.
2 moths later in January 1940, Stibitz completes his Complex Number Calculator (later called the Model I Relay Calculator). This was the first calculator to be controlled remotely through telephonelines.
Almost 2 years later, the Z3 was invented by Zuse in Germany. This is the first calculator capable of floating point operations. He sets the standard for how floating point numbers are represented, which is still used today.
From here on out, Calculator history becomes computer history. Further development of computers/calculators is driven by the military during World War 2, mostly for cracking encryption.
What is sin on a scientific calculator?
It is short for sine (pronouncing it as sin annoys many maths teachers). Check this site out for detailed info. http://www.clarku.edu/~djoyce/trig/
The first electronic calculator?
It is one of the first hand held caculator but was invented by many people!!!!!!!!
The first solid state electronic calculator was invented in the 1960's. They are available in many different sizes. Smaller ones hold less capacity than say a graphing calculator that has more functions.
What is the difference between scientific and mechanical calculators?
scientific calculators have scientific calculations such as scientific notation, but mechanical ones dont.
IF U R USING ORIGINAL CACULATOR OF CITIZE 001011 LARGE DISPLAY THE SWITCH OFF IT FOR SAVING IT BATTRY AND VERIFY THE ORIGINALITY OF IT FOLLW THE COMMAND BY PRESSING ON/AC AND THEN
PRESSING in continuation
Divide
Multiply
Percentage
Check
Correct
Correct
and see u r caculator is getting off
Square footage of a pie shape?
The shape of a pie is circular. If its diameter is d units, the area is 0.25*pi*d^2 square units.
What is the biggest number you can write on a calculator?
This will depend on the type of calculator you have. This will depend on the type of calculator you have.
D. enter the number; press the square root key
What is the right sequence to find the square root of a number on a calculator?
Here are the steps:
1. Find the square root button, it usually located at the middle.
2. Press the square root button.
3. Insert a number.
4. Press '='.
5. You get the answer.
P.S. These steps belongs to scientific calculator.
What calculator will find the square footage of an irregular shape?
SketchAndCalc, added to related links below.
Performing such a calculation manually is indeed complex and time consuming.
SketchAndCalc is an online Perimeter and Area calculator that allows the user to draw any regular or irregular shape with their cursor. The area and perimeter results are displayed when the shape is closed. The scale can be adjusted to accommodate very large areas such as the floor plan of a building, or the square meters area of a kitchen work surface or smaller.
Using your cursor, draw the shape of any object. Line lengths are displayed below each line to ensure measurements are true. And they can be adjusted after the shape is complete. The area and perimeter results are then displayed. It has been compiled as an Adobe Flash component so the user may need to install the Adobe Flash browser plug-in.
In addition, the tool offers a Sharing feature which allows the user to save the calculation as an URL to paste into an email or blog, and allow users to collaborate on the drawing as many times as they wish.
This tool is currently free to use.
How do you work out the circumfrance of a circle?
You press pi button on the calculator or type in 3.14 you then times it by the radius then square it. :) x
What is the procedure calculate the value of 'm' in m-derived filters?
f(infinity)={fc/[(1-m^2)^(1/2)]}
What is an Einstein calculator?
The Einstein Calculator is a calculator made by Albert Einstein. I have no clue what its about. Probably a normal calculator. I see u chase d! Desiree s. :)
Which graphing calculator is Better TI or Casio Also which model best for college math?
Texas Instruments graphing calculators are really easy to use and there are a lot of applications and programs available for the TI graphing calculator platforms (TI-83+ family, TI-84+, TI-Nspire, and TI-89 family). Thus, you will be able to easily find a program for your specific class (Calculus, physics, chemistry, etc.) at Texas Instruments app store and also open source program repositories like ticalc.org.
The TI calculators also are the most commonly used in the more advanced mathematics courses, including Calculus I,II,III, differential equations, etc. because they have all of the features and functions one would need in a easy to use, user-friendly interface.
* 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.
