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  1. linear algebra - How to check the linearity of a function ...

    Apr 30, 2014 · 1 You know that a linear function satisfies the following property: $$f (a+b)=f (a)+f (b)$$ and you want to determine whether a particular function $g$ is linear, so you just check …

  2. Is the absolute value function a linear function?

    May 20, 2015 · I would simply define a linear function as always having the same slope (and, more technically, it must be continuous). Clearly, the absolute value function has a negative …

  3. sequences and series - Are linear functions always continuous ...

    Jul 30, 2019 · Such a function may also be called a linear map. Note that this is different from the middle school definition of a linear function in two very important ways: first, the definition …

  4. algebra precalculus - Is constant function also a linear function ...

    Oct 30, 2017 · It depends on how you define "a linear function" The graph is a horizontal line. Often times, books describe linear functions as polynomials of degree 1, which would require a …

  5. real analysis - maximum of a linear function on a convex set ...

    Mar 29, 2021 · How to prove that any linear function which is defined on a convex subset of $\\mathbb{R}^n$ attains its maximum always at one of the extreme points of the set? Thank …

  6. linear algebra - Linearity of the function $f (x) = ax + b ...

    A linear equation (in a particular set of variables) is an equation where each individual term is either constant or is a linear function of one of the variables.

  7. terminology - What does 'linear' mean in Linear Algebra?

    Sep 8, 2011 · I think linear refers to the fact that vector spaces are not curved. For instance, the wikipedia page for linear spaces gets redirected to the page on vector spaces. So does the …

  8. logic - What does it mean for something to be linear?

    May 16, 2020 · This definition works for linear functions but I was asking more about the specific term "linear" and how you would approach it regardless of what comes after the word linear, …

  9. What is the difference between linear function and linear map ...

    A linear function (or functional) gives you a scalar value from some field $\mathbb {F}$. On the other hand a linear map (or transformation or operator) gives you another vector. So a linear …

  10. SOLUTION: The height (in centimeters) of a candle is a linear …

    Question 1090014: The height (in centimeters) of a candle is a linear function of the amount of time in hours it has been burning when graphed, the function gives a line with a slope of -0.6 …