By Ivan Savov

Linear algebra is the basis of technology and engineering. wisdom of linear algebra is a prerequisite for learning data, laptop studying, special effects, sign processing, chemistry, economics, quantum mechanics, and numerous different purposes. certainly, linear algebra bargains a robust toolbox for modelling the true world.

The NO BULLSHIT advisor TO LINEAR ALGEBRA exhibits the connections among the computational concepts of linear algebra, their geometric interpretations, and the theoretical foundations. This university-level textbook comprises classes on linear algebra written in a method that's specified and concise. every one notion is illustrated via definitions, formulation, diagrams, motives, and examples of real-world purposes. Readers construct their math superpowers by way of fixing perform difficulties and studying to take advantage of the pc algebra process SymPy to hurry up tedious matrix mathematics tasks.

“*The e-book explains the options in a fashion that provides a robust intuitive understanding.*” — Joe Nestor, scholar

“*It’s rather well written and a enjoyable read!*” — Felix Kwok, professor

“*I used this ebook in a number of massive facts classes whilst i wanted a deeper realizing of the material.*” — Zane Zakraisek, pupil

The writer, Ivan Savov, combines 15 years of tutoring adventure with a B.Eng. in electric engineering, an M.Sc. in physics, and a Ph.D. in laptop technology from McGill University.

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**Extra resources for No Bullshit Guide to Linear Algebra**

**Sample text**

Value at x = 0: tan(0) = 01 = 0, because sin(0) = 0. • • • • • Value at x = π 4: tan π 4 = sin( π 4) cos( π 4) √ = 2 2 √ 2 2 = 1. • The number tan(θ) is the length-ratio of the vertical and the horizontal sides in a right-angle triangle with angle θ. • The inverse function of tan(x) is tan−1 (x). • The inverse tangent function is used to compute the angle at the base in a right-angle triangle with horizontal side length h and vertical side length v : θ = tan−1 hv . 7182818 . . is denoted f (x) = ex ≡ exp(x).

For example, by connecting your knowledge of the fact sin(30◦ ) = 21 with the relation √ sin2 x + cos2 x = 1, you can show that cos(30◦ ) = 23 . Note the notation sin2 (x) means (sin(x))2 . To develop mathematical skills, it is vital to practice path-building between related concepts by solving exercises and reading and writing mathematical proofs. With this book, I will introduce you to many paths between concepts; it’s up to you to reinforce these by using what you’ve learned to solve problems.

Formulas Here is a list of common functions and their inverses: function f (x) ⇔ inverse f −1 (x) x+2 ⇔ x−2 2x ⇔ 12 x −x ⇔ −x √ x2 ⇔ ± x 2x ⇔ log2 (x) 3x + 5 ⇔ x a 1 3 (x − 5) ⇔ loga (x) exp(x) ≡ ex ⇔ ln(x) ≡ loge (x) sin(x) ⇔ sin−1 (x) ≡ arcsin(x) cos(x) ⇔ cos−1 (x) ≡ arccos(x) The function-inverse relationship is reflexive—if you see a function on one side of the above table (pick a side, any side), you’ll find its inverse on the opposite side. 5) − Ψ(1). See what I mean when I say the teacher doesn’t like you?