# Ch 13: Using Scientific Calculators

### About This Chapter

## Using Scientific Calculators

As you've probably learned, math is much easier if you can use a calculator. Like many people, you likely hated the early days in elementary school when calculations started getting harder but the teacher only let you use your pencil and paper. However, when you reached the higher math levels, you were likely expected to use a scientific calculator. These complex calculators can be harder to understand than the math problem itself if you don't know how to use them correctly. In these lessons, you'll learn everything you need to know about using a scientific calculator to assist you with advanced math problems.

A scientific calculator has a lot of additional buttons that go beyond the simple plus and minus. In the video lessons, you'll learn about radians, degrees and notations. Find out what buttons these correspond to on the calculator and what you need to do to avoid calculation errors when working with these concepts.

As the lessons move on, you approach the topics of trigonometry functions and exponentials. The lessons will specifically focus on the CLEP calculator so you're familiar with how it works. You'll also study the use of a scientific calculator to graph functions and solve equations by graphing. The lessons will show you how to determine the function intercepts and get the right solutions through graphing.

In the end, understanding how to use a scientific calculator will help make advanced math problems much easier to solve while also ensuring you are getting the correct answers.

### 1. Radians & Degrees on the CLEP Scientific Calculator

CLEP scientific calculators are programmed to use radians and degrees, so it's important to know which mode it is in for trigonometry. Learn the functions of the CLEP calculators, and how to apply both radian and degree modes to trigonometry.

### 2. Trigonometry Functions & Exponentials on the CLEP Calculator

A CLEP calculator can be used to solve trigonometric functions, exponents, and perform other calculations. Learn the features of history mode, arccosine function, and several more types of equations useful to know.

### 3. Solving Equations on the CLEP Scientific Calculator

You can use the CLEP calculator Solver mode to calculate unknowns in an equation. Learn more about the CLEP scientific calculator, how many or what kind of equations it can solve and more about solver mode.

### 4. How to Solve Equations by Graphing on the CLEP Scientific Calculator

A CLEP calculator is useful in calculating and solving different mathematical equations such as finding the intersections of multiple functions. Learn more about solving equations by graphing on the CLEP scientific calculator.

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### Other Chapters

Other chapters within the CLEP Precalculus: Study Guide & Test Prep course

- Functions
- Recognizing Functions
- Working with Exponential and Logarithmic Functions
- Piecewise and Composite Functions
- Functions as Models
- Understanding, Solving & Graphing Inequalities
- Understanding Linear and Nonlinear Equations
- Radical, Rational and Absolute Value Equations
- Parabolas, Ellipses and Hyperbolas
- Factoring & Solving Quadratic Equations
- Exponents and Polynomials
- Geometry and Trigonometry
- Trigonometry Overview
- CLEP Precalculus Flashcards
- Additional CLEP Precalculus Flashcards