Mark Ryan

Mark Ryan has more than three decades’ experience as a calculus teacher and tutor. He has a gift for mathematics and a gift for explaining it in plain English. He tutors students in all junior high and high school math courses as well as math test prep, and he’s the founder of The Math Center on Chicago’s North Shore. Ryan is the author of Calculus For Dummies, Calculus Essentials For Dummies, Geometry For Dummies, and several other math books.

Articles & Books From Mark Ryan

Geometry Workbook For Dummies
Don't be a square! Strengthen your geometrical skills Lots of students need extra practice to master geometry. Thankfully, there's Geometry Workbook For Dummies. Packed with hundreds of practice problems and easy-to-understand concept explanations, this book takes a hands-on approach to showing you the geometric ropes.
Cheat Sheet / Updated 07-26-2024
Use this cheat sheet as a reference for the most important formulas, rules, equations, and so on that you need for calculus. The main calculus topics are covered (limits, differentiation, integration, and infinite series), as are the critical pre-calculus topics (algebra, geometry, and trigonometry).Some Essential AlgebraAlgebra is the language of calculus.
Calculus All-in-One For Dummies (+ Chapter Quizzes Online)
Make calculus more manageable with simplified instruction and tons of practice Calculus All-in-One For Dummies pairs no-nonsense explanations of calculus content with practical examples and practice problems, so you can untangle the difficult concepts and improve your score in any calculus class. Plus, this book comes with access to chapter quizzes online.
Article / Updated 03-25-2021
Rollers come in many shapes, sizes, colors, and types of material. And with each of those different types of rollers come many different functions. Just like none of our bodies are the same, not all rollers are created equal. Although the sheer variety of rollers can sometimes be confusing, you optimize your body’s benefits from the many roller options available to you.
Calculus Essentials For Dummies
Calculus Essentials For Dummies (9781119591207) was previously published as Calculus Essentials For Dummies (9780470618356). While this version features a new Dummies cover and design, the content is the same as the prior release and should not be considered a new or updated product. Many colleges and universities require students to take at least one math course, and Calculus I is often the chosen option.
Geometry Essentials For Dummies
Geometry Essentials For Dummies (9781119590446) was previously published as Geometry Essentials For Dummies (9781118068755). While this version features a new Dummies cover and design, the content is the same as the prior release and should not be considered a new or updated product. Just the critical concepts you need to score high in geometryThis practical, friendly guide focuses on critical concepts taught in a typical geometry course, from the properties of triangles, parallelograms, circles, and cylinders, to the skills and strategies you need to write geometry proofs.
Article / Updated 10-21-2018
The sandwich or squeeze method is something you can try when you can’t solve a limit problem with algebra. The basic idea is to find one function that’s always greater than the limit function (at least near the arrow-number) and another function that’s always less than the limit function.Both of your new functions must have the same limit as x approaches the arrow-number.
Article / Updated 09-24-2018
A limit problem asks you to determine what the y value of a function is zeroing in on as the x value approaches a particular number. With your calculator, you can solve a limit problem using graphing mode.To begin, enter the limit expression in graphing or “y =” mode, go to Table Setup, set Tblstart to the arrow-number, and setto something small like 0.
Article / Updated 09-24-2018
A limit problem asks you to determine what the y value of a function is zeroing in on as the x value approaches a particular number. You can solve a limit problem with your calculator using the arrow-number.First, store a number into x that’s extremely close to the arrow-number, enter the limit expression in the home screen, and hit enter.
Article / Updated 08-30-2018
In addition to solving limit problems numerically (with your calculator) and symbolically (with algebra), you should be able to solve limit and continuity problems visually. The following practice questions will test your skills.Use the following figure to answer the practice problems. A pretty bizarre graph. Practice questions f(5) = ?