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  1. calculus - What is the practical difference between a differential …

    See this answer in Quora: What is the difference between derivative and differential?. In simple words, the rate of change of function is called as a derivative and differential is the actual …

  2. reference request - Best Book For Differential Equations?

    The differential equations class I took as a youth was disappointing, because it seemed like little more than a bag of tricks that would work for a few equations, leaving the vast majority of …

  3. Derivative of sigmoid function $\\sigma (x) = \\frac{1}{1+e^{-x}}$

    In my AI textbook there is this paragraph, without any explanation. The sigmoid function is defined as follows $$\\sigma (x) = \\frac{1}{1+e^{-x}}.$$ This function is easy to differentiate

  4. Understanding the definition of interior product of differential …

    Understanding the definition of interior product of differential forms as $ (\iota_X\beta) (Y)=\beta (X,Y)$ Ask Question Asked 11 years, 8 months ago Modified 4 years, 7 months ago

  5. Identifying Independent And Dependent Variables In Differential …

    Jan 6, 2012 · Identifying Independent And Dependent Variables In Differential Equations Ask Question Asked 13 years, 11 months ago Modified 13 years, 11 months ago

  6. Exponential of the differential operator and DDE

    Explore related questions ordinary-differential-equations delay-differential-equations See similar questions with these tags.

  7. analysis - How to tell if a differential equation is homogeneous, or ...

    Jan 27, 2015 · Sometimes it arrives to me that I try to solve a linear differential equation for a long time and in the end it turn out that it is not homogeneous in the first place. Is there a way to …

  8. riemann surfaces - Differential forms - Mathematics Stack Exchange

    10 I will assume that you know how to handle smooth differential forms on smooth real manifolds, this is a necessary prerequisite for understanding complex and holomorphic differential forms …

  9. differential geometry - What is a covector and what is it used for ...

    In particular, from a mathematical physics point of view, differential forms (covectors and tensors in general) are fundamental entities for the formulation of physical theories in geometric terms.

  10. real analysis - Rigorous definition of "differential" - Mathematics ...

    Nov 3, 2016 · What bothers me is this definition is completely circular. I mean we are defining differential by differential itself. Can we define differential more precisely and rigorously? P.S. …