Ongeveer 2.480.000 resultaten
Koppelingen in nieuw tabblad openen
  1. When does a line integral equal an ordinary integral?

    One possible interpretation: a "normal" integral is simply a line integral where the path is straight and oriented along a particular axis. Thus, as soon as you perform a transformation to the integrand to …

  2. What is the integral of 1/x? - Mathematics Stack Exchange

    20 jan. 2021 · 16 Answers to the question of the integral of 1 x 1 x are all based on an implicit assumption that the upper and lower limits of the integral are both positive real numbers. If we allow …

  3. Indefinite double integral - Mathematics Stack Exchange

    In calculus we've been introduced first with indefinite integral, then with the definite one. Then we've been introduced with the concept of double (definite) integral and multiple (definite) integ...

  4. What is the integral of $e^{-x^2/2}$ over $\\mathbb{R}$

    What is the integral of $$\int_ {-\infty}^ {\infty}e^ {-x^2/2}dx\,?$$ My working is here: = $-e^ (-1/2x^2)/x$ from negative infinity to infinity. What is the value of this?

  5. What is the integral of 0? - Mathematics Stack Exchange

    4 feb. 2018 · The integral of 0 is C, because the derivative of C is zero. Also, it makes sense logically if you recall the fact that the derivative of the function is the function's slope, because any function f …

  6. Integral of a derivative. - Mathematics Stack Exchange

    9 aug. 2017 · So, I can intuitively grasp that the derivative of the integral of a given function brings you back to that function. Is this also the case with the integral of the derivative?

  7. Why are they called "first integrals"? - Mathematics Stack Exchange

    26 apr. 2019 · In your case, your first integral is your solution. Actually for first order differential equation integral and solution are equivalent. Let's come to the answer of your second query now. "The …

  8. What does it mean for an "integral" to be convergent?

    17 feb. 2025 · The noun phrase "improper integral" written as $$ \int_a^\infty f (x) \, dx $$ is well defined. If the appropriate limit exists, we attach the property "convergent" to that expression and use the …

  9. Contour Integral Involving Cauchy's Principal Value

    5 jan. 2026 · I need help with the following integral. $$ \mathrm {P}\!\int_ {-\infty}^ {\infty} \frac {\cos x} {x+a}\,dx, \qquad 0<a<1. $$ P is Cauchy's Principal Value. The first ...

  10. Integral of a complex gaussian function - Mathematics Stack Exchange

    28 mei 2021 · I am having difficulties to compute this integral $$ \int_ {-\infty}^\infty e^ {\pm ix^2} \, dx. $$ I tried to use complex integration and Cauchy's theorem but it didn't work. Can someone help me?