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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
How to Choose the Right Calculator?
Choosing a calculator can be a daunting task. There are so many out there to select from. At the very low end, there are calculators for less than a dollar which simply can handle the basic functions of addition, subtraction, multiplication, and division. At the other end of the spectrum, there are calculators which cost hundreds of dollars. This guide will give you a step by step process for choosing the calculator that is right for you.
1. Purpose
The primary question you need to answer at the first stage is what you will be using your calculator for. There are many different types of people who use calculators for different purposes. If you are a small business owner who needs to use your calculator for things like ROI, then your choice will be much different than a college student who needs it to solve calculus problems or a stay-at-home mother who need it to add up bills once a month.
2. Brand
Once you have figured out what you will be using your calculator for, you should think about which brand you want to buy. One brand that has been trusted for many years is Texas Instruments. They make powerful calculators in a wide variety of categories.
3. Display
One thing you might want to consider when choosing your calculator is the type of display you’d like. If it’s been awhile since you bought your last calculator, then you probably remember the frustrating process you had to go through every time you made an error. If you pressed the wrong button, you typically had to completely start over from the beginning. Nowadays, there are many calculators that have a screen more like a computer display. You can type in your problem or equation, and then visually inspect it before you have the calculator solve it.
4. Price
Once you’ve decided on a brand and a model that you want, you want to find the best price possible for your product. Often this can be accomplished by comparison shopping online. It is usually much easier to find deals online than offline.
Hopefully this guide has given you a little more confidence for choosing your next calculator. Whichever you choose, make sure to weigh your options carefully so that you will be happy with your decision for years to come.
Where can you buy a calculator Casio Fx-115ES in Dubai?
Not 100% sure, but check Jumbo elecronics. ^^
Code to develop a calculator in adobe flex?
here is the code for simple calculator in flex,
[Bindable] private var _txt:Object;
[Bindable] private var _choos:String;
private function satu():void{
txtLayar.text = txtLayar.text + '1';
}
private function dot():void{
txtLayar.text = txtLayar.text + '.';
}
private function dua():void{
txtLayar.text = txtLayar.text + '2';
}
private function tiga():void{
txtLayar.text = txtLayar.text + '3';
}
private function empat():void{
txtLayar.text = txtLayar.text + '4';
}
private function lima():void{
txtLayar.text = txtLayar.text + '5';
}
private function enam():void{
txtLayar.text = txtLayar.text + '6';
}
private function tujuh():void{
txtLayar.text = txtLayar.text + '7';
}
private function lapan():void{
txtLayar.text = txtLayar.text + '8';
}
private function sembilan():void{
txtLayar.text = txtLayar.text + '9';
}
private function noll():void{
txtLayar.text = txtLayar.text + '0';
}
private function clear():void{
txtLayar.text = '';
}
private function sum():void{
_txt = txtLayar.text;
_choos = '1';
txtLayar.text = '';
}
private function sub():void{
_txt = txtLayar.text;
_choos = '2';
txtLayar.text = '';
}
private function mul():void{
_txt = txtLayar.text;
_choos = '3';
txtLayar.text = '';
}
private function div():void{
_txt = txtLayar.text;
_choos = '4';
txtLayar.text = '';
}
private function hasil():void{
var txt2:Number = Number(txtLayar.text);
var txt3:Number = Number(_txt);
var has:Number;
if(_choos=='1'){
has = txt3 + txt2;
}else if(_choos == '2'){
has = txt3 - txt2;
}else if(_choos == '3'){
has = txt3 * txt2;
}else if(_choos == '4'){
has = txt3 / txt2;
}
txtLayar.text = has.toString();
}
]]>
Where can you find a good TI-83 graphing calculator for cheap?
You can rent one online. Just google Rent a TI-83 calculator and then the websites come up. However, there is a waiting list. Im on the waiting list = (. Or just google Used TI-83 calculator and you can buy one on amazon for I think the cheapest was 50.00
Press "second" "math", and it should be the first thing listed. If you need other commands hit "second" "0" that will enter the catalog and you can press any letter (without hitting alpha) to jump to that letter in the list.
What difference did the Einstein calculator make?
it made a difference because it didnt need batteries
How do i transfer a program on my graphing calculator to a friend's calculator?
You can use the cables provided in the box, and go to Link on most graphing calculators. I'm not sure what calculator you're using though, so I can't be sure. I'm assuming you've either got an interest in programming calculators, or you like to play games.
Is there a TI calculator that can graph nonfunctions like sin y?
sin y is a function so the question does not appear to make any sense.
What is the Oughtreds slide rule?
Oughtred's slide rule is two mated Gunter scales.
A man named Gunter devised the Gunter scale. It is like a ruler, except that the divisions represent the values associated with logarithms of the distances from the end. So on a ten inch long scale, the numbers would be at the following distances from the left end:
- at 0 inches
- at 3.01 inches
- at 4.77 inches
- at 6.02 inches
- at 6.99 inches
- at 7.78 inches
- at 8.45 inches
- at 9.03 inches
- at 9.54 inches
- at 10 inches
By using dividers, this ruler-like scale could be used for multiplication.
Oughtred realized that if a person had two Gunter scales, one with the graduation lines and numbering along the top edge, and the other with them along the bottom edge, they could be used to do math without need for dividers. They were held together by mitering one into the other, and so the slide rule was born.
We can multiply two numbers by adding their logarithms and finding what the result is the logarithm of. For example, we could put the 1 on the top scale at the point where 2 is on the bottom scale. If we then look where the 3 is on the top scale, we have added the distances marked 2 (3.01 inches from the end) and 3 (4.77 inches form the end), and found 6 (at a point 7.78 from the end). So 2 x 3 = 6.
The early slide rules were usually two feet long, and were used in British customs houses for calculating taxes on goods whose weights needed conversion. The original form of the slide rules was used as a part of tools until into the twentieth century. The simple slide rules were improved a number of times, most notably by a French army officer named Mannheim, who added a cursor during the 1870s, and his name is often used to describe the simplest type used in the twentieth century by engineers.
Comparing Simple And Compound Interest Calculators?
An interest calculator is an electronic/web-based formula that calculates things like how much interest is payable on a principal debt, what monthly interest payments will be and what percentage of any monthly payment on a debt will be allocated towards interest payable.
There are two types of interest calculators: Simple and compound. The difference between simple and compound interest is fairly easy to understand, and, while simple interest is calculated on the principal debt only, compound interest is calculated on the principal debt plus the interest already accrued as at the date of the interest calculation.
Given the basic difference between the two types of interest, it stands to reason that there will be two different calculators: one for gross simple interest payable and one for gross compound interest payable. In order to calculate the total interest payable, the simple interest calculator will use factors like the amount of the principal debt - the total amount borrowed - the interest percentage offered by the bank or credit union and the number of years the account holder wants to pay the debt off in. The compound interest calculators, on the other hand, while also making use of factors like the number of years needed to pay off the debt and the interest rate, will, when calculating the gross compound interest payable, use, as a total debt, the principal debt plus interest accrued to date instead of just the principal debt. Another factor that must be taken into account when using a compound interest calculator is how many times a year the interest will be compounded, which can be translated as "how many times a year will the interest amount be added to the principal debt to create the gross principal debt on which further interest will be charged".
Simple and compound interest calculators can be used to calculate the interest payable on all types of debts. They are, however, most often utilized by mortgage loan companies and auto finance companies when customers are contemplating purchasing a house or a car in order to determine what their total debt - principal plus interest - will be.
Coding of calculator programme using switch case in java?
import java.io.*;
public class calculator{
public static void main(String[] args) throws Exception{
int x, y;
BufferedReader b = new BufferedReader(new InputStreamReader(System.in)) ;
System.out.println("Enter two numbers for operation:");
x = Integer.parseInt(b.readLine());
y = Integer.parseInt(b.readLine());
System.out.println("1. Add");
System.out.println("2. Subtract");
System.out.println("3. Multiply");
System.out.println("4. Divide");
System.out.println("enter your choice:");
int a= Integer.parseInt(b.readLine());
switch (a){
case 1:
System.out.println("Enter the number one=" + (x+y));
break;
case 2:
System.out.println("Enter the number two=" + (x-y));
break;
case 3:
System.out.println("Enetr the number three="+ (x*y));
break;
case 4:
System.out.println("Enter the number four="+ (x/y));
break;
default:
System.out.println("Invalid Entry!");
}
}
}
may be 128
What is a present value calculator used for?
According to the dictionary, a present value calculator calculates the value on a given date of a future payment or series of future payments, discounted to reflect the time value of money and other factors such as investment risk.
Call 1-800-TI-CARES, and speak with TI directly.
The 'tests' as you call them, are really averages which vary from country to country. All human bodies develop at varying rates, though most stop growing upwards in their late teens. I was told that my grandfather grew one inch after he was 21 years. So the answer is that your height at 15 years is a reasonable indication that you will be tall, but not an exact prediction of just how tall.
What does the letter C and E in the calculator represents?
C stands for Clear. A button labelled C is often used to erase the number you are entering, in case you make a mistake. Pressing it twice will erase the whole expression you are entering.
E usually stands for Error. The letter E is displayed on screen of most four-function and scientific calculators when there is a problem evaluating the expression, for example, if it exceeds the calculator's numeric range or you try to divide by zero.
A button labelled CE usually clears the number you are currently entering so you can start again, but on four-function calculators it can also release the E symbol from the screen so you can continue working.
When did students first use a calculator in school?
They first appeared in my High School in early 1974, but the teachers forbad their use on tests (as only a very few students with wealthier than average parents had them). Typical prices were over $300.
I got my first calculator as a christmas present (that I selected myself) that year, it cost $100 and had only 12 functions and a 6 digit display (many of the functions only calculated to 2 digit accuracy, the same as a sliderule). Battery life was very short (nonrechargeable) and I occasionally had the batteries die right in the middle of a calculation.
