Mathematics: Completing the square
Mathematics: Completing the square, available at Free, has an average rating of 4.87, with 12 lectures, based on 164 reviews, and has 6613 subscribers.
You will learn about Completing the square: how it is done and why the method works (variants for 1, 2, and 3 variables); a geometric illustration of the method and its name. Completing the square in one variable for solving quadratic equations with help of the discriminant and the quadratic formula; derivation of the formula. Completing the square in one variable for plotting polynomials of second degree with help of graph transformations of the parabola y=x^2; finding new vertex. Completing the square in two variables, one at a time, for identifying conic sections: circles, ellipses, parabolas, and hyperbolas. Completing the square in three variables, one at a time, for identifying quadric surfaces: spheres, ellipsoids, hyperboloids, double cones, etc. Completing the square in two or three variables for definiteness of 2×2 or 3×3 matrices / corresponding quadratic forms in 2 or 3 variables. This course is ideal for individuals who are High school students who want to learn the method of completing the square and who are curious about its applications in university topics. or University or college students who have discovered that they need the method of completing the square for some university level courses, and they want to re-learn this method. or Everybody who wants to learn a remarkable but elementary method, which has surprisingly many applications in various advanced branches of mathematics. It is particularly useful for High school students who want to learn the method of completing the square and who are curious about its applications in university topics. or University or college students who have discovered that they need the method of completing the square for some university level courses, and they want to re-learn this method. or Everybody who wants to learn a remarkable but elementary method, which has surprisingly many applications in various advanced branches of mathematics.
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Summary
Title: Mathematics: Completing the square
Price: Free
Average Rating: 4.87
Number of Lectures: 12
Number of Published Lectures: 12
Number of Curriculum Items: 12
Number of Published Curriculum Objects: 12
Original Price: Free
Quality Status: approved
Status: Live
What You Will Learn
- Completing the square: how it is done and why the method works (variants for 1, 2, and 3 variables); a geometric illustration of the method and its name.
- Completing the square in one variable for solving quadratic equations with help of the discriminant and the quadratic formula; derivation of the formula.
- Completing the square in one variable for plotting polynomials of second degree with help of graph transformations of the parabola y=x^2; finding new vertex.
- Completing the square in two variables, one at a time, for identifying conic sections: circles, ellipses, parabolas, and hyperbolas.
- Completing the square in three variables, one at a time, for identifying quadric surfaces: spheres, ellipsoids, hyperboloids, double cones, etc.
- Completing the square in two or three variables for definiteness of 2×2 or 3×3 matrices / corresponding quadratic forms in 2 or 3 variables.
Who Should Attend
- High school students who want to learn the method of completing the square and who are curious about its applications in university topics.
- University or college students who have discovered that they need the method of completing the square for some university level courses, and they want to re-learn this method.
- Everybody who wants to learn a remarkable but elementary method, which has surprisingly many applications in various advanced branches of mathematics.
Target Audiences
- High school students who want to learn the method of completing the square and who are curious about its applications in university topics.
- University or college students who have discovered that they need the method of completing the square for some university level courses, and they want to re-learn this method.
- Everybody who wants to learn a remarkable but elementary method, which has surprisingly many applications in various advanced branches of mathematics.
Mathematics: Completing the square
Mathematics from high school to university
1. Completing the square: how the method works, and why
You will learn about the method of completing the square, how it works and why. This remarkable (and elementary!) method has surprisingly many applications in advanced mathematics, and this is why it is really good to master it. Geometrical illustrations will give you a nice visual explanation of both the method and the name of the method.
2. A glimpse into some applications of completing the square
You will learn about various applications of completing the square, starting with quite elementary applications (high-school level) such as solving quadratic equations and drawing graphs of second degree polynomials, and continuing with some information about more advanced applications such as identifying quadratic curves and surfaces, determining definiteness of square matrices (or corresponding quadratic forms), and optimization of functions in two or more variables. These applications will not be treated in this course due to time constraints, but you will get information in which courses you find both theory and practice on the topics. You will also get some practice in completing the square. In this brief course I have chosen to inform you about applications of completing the square in Algebra, Calculus, and Linear Algebra and Geometry.
A note: Another typical application of completing the square (not discussed in this course) is in Calculus 2, when you must integrate a rational function (a function of the type p(x)/q(x), where both p(x) and q(x) are polynomials). After performing partial fraction decomposition, you will represent your function as a sum of simpler fractions, with denominators being first-degree polynomials or second-degree polynomials without real zeros. This second type, when integrated, will lead to some function defined by arctan; in order to perform this integration in a correct way (variable substitution), you must… complete the square! You can learn about partial fraction decomposition in my course “Precalculus 2: Polynomials and rational functions”, and about the integration method mentioned above in my upcoming course “Calculus 2, part 1 of 2: Integrals with applications”.
Extras
You will learn: about all the courses we offer. You will also get a glimpse into our plans for future courses, with approximate (very hypothetical!) release dates.
Course Curriculum
Chapter 1: Completing the square: how the method works, and why
Lecture 1: Introduction to the course
Lecture 2: Computation rules for the real numbers
Lecture 3: Some consequences of the distributive law
Lecture 4: Three important formulas with geometrical illustrations
Lecture 5: Completing the square in one variable
Lecture 6: Completing the square in one variable at a time
Lecture 7: Completing the square in two variables
Lecture 8: Completing the square in three variables
Chapter 2: A glimpse into some applications of completing the square
Lecture 1: Plotting quadratic functions, Problem 1
Lecture 2: Solving quadratic equations, derivation of the quadratic formula, Problem 2
Lecture 3: Completing the square: a wrap up
Chapter 3: Extras
Lecture 1: Bonus Lecture
Instructors
-
Hania Uscka-Wehlou
University teacher in mathematics, PhD -
Martin Wehlou
Editor at MITM AB
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- 3 stars: 4 votes
- 4 stars: 26 votes
- 5 stars: 134 votes
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