How to Use a Scientific Calculator

How to Use a Scientific Calculator

A scientific calculator is a special type of calculator that provides advanced arithmetic, algebraic and trigonometric functions. Unlike standard calculators, the keypad on scientific calculators includes special keys for raising and lowering exponents, finding square roots and calculating a number's inverse. It's a necessary tool for students who need to master complicated equations and solve complex science problems. In fact, using a scientific calculator can even help them get better grades in their math and science courses. But, if a student doesn't know how to use the calculator correctly, they won't be able to streamline steps or make accurate calculations.

Different Calculators

Before you start working with your calculator, it's important to understand how it works and what each button does. Every calculator has its own layout and the way it works varies depending on its manufacturer. You can look up your specific calculator's manual or ask your instructor for further clarification. Some calculators also have a helpful icon that shows you what each function does and which key to press.

The most common functions on a scientific calculator are addition, subtraction, multiplication and division. However, there are other functions that you may not have seen before. For example, some calculators can calculate in vulgar fractions and mixed numbers. They may display these fractions as decimal approximations, or they may use a point instead of a comma. They can also perform operations with negative numbers and work in radians.

It's also important to remember that a scientific calculator has a different order of operations than a standard calculator. You should always follow PEMDAS (parenthesis, exponent, multiplication, division, addition and subtraction) when working with a scientific calculator. Additionally, it's crucial to use parentheses properly so that your formula remains intact. This will ensure that your results are correct and will help you avoid any errors.

Getting Familiar with the Keypad

The keypad on a scientific calculator is usually much larger than that of a standard calculator. There are also more symbols and functions available, so it's important to take the time to familiarize yourself with each one. Some calculators allow you to enter an expression and then click the "equal sign" button (=) for an answer. Other calculators will display the entire expression and only require you to select the part that needs to be calculated.

You can also find additional information about an expression by pressing the "help" key. This will open a window that describes what each symbol and operation means. You can then choose whether you want to use the result of the calculation or if you need to change something.

Graphing

The ability to graph is another very important feature of a scientific calculator. This will allow you to plot equations on the screen and visualize complex functions. Most scientific calculators can graph in both polar and rectangular coordinate systems. They can also show a graph of the functions that you enter.

Before purchasing a scientific calculator, check your school's syllabus or your course requirements to make sure it will be allowed in class. It's also a good idea to buy a model that will be useful for all of your classes.