Skip to content
START WITH A QUESTION

What would you like to understand?

Find an answer. See the moment it becomes clear. Follow the idea further.

← Concept directory

Answers for “什么是围道积分?”

4 keyword matches

Understanding your question. You can explore the search results below now.

Meet the concept

↗

The video proposes two distinct mathematical methods for evaluating the Dirichlet integral: 1. The Fourier Transform method, which involves transforming a rectangular pulse function and using the inverse transform. 2.

Conditions: The problem is the evaluation of ∫0∞sin⁡xxdx\int_{0}^{\infty} \frac{\sin x}{x} dx.; The methods are listed as alternatives.

Meet the concept

↗

The ML inequality is an estimation tool for contour integrals. It states that the absolute value of the integral of a function along a path is bounded by the supremum (maximum) of the absolute value of the function on that path, multiplied by the length of the path.

Conditions: The function is integrated along a rectifiable path.; The function is continuous on the path.

Meet the concept

↗

The explicit formula for the antiderivative F(z)F(z) of a holomorphic function ff on a domain DD is given by the contour integral of f(w)f(w) along a path γz\gamma_z from a fixed base point z0z_0 to zz. The formula is F(z):=∫γzf(w)dwF(z) := \int_{\gamma_z} f(w) dw.

Conditions: The function f is holomorphic on the domain D.; The domain D is simply connected (ensuring path independence).; A base point z0z_0 is fixed in D.; γz\gamma_z is a path in D from z0z_0 to z.

Meet the concept

↗

The notation [a,z][a,z] represents the straight line segment joining the points a and z in the complex plane. It is used both as the path of integration for the contour integral and as the set over which the supremum of the function's deviation is taken.

Conditions: The points a and z are in the domain D.; The straight line segment connecting a and z lies entirely within D.