Skip to Content

Divergence of a Vector Field at a Point

Home | Calculus 3 | Vector fields, divergence, and curl | Divergence of a Vector Field at a Point

Find the divergence of the vector field FF at the point (2, 4, 1).

In this problem, we're tasked with finding the divergence of a vector field at a specific point. Divergence is a measure of how much a vector field spreads out from a particular point and is a key concept in vector calculus. It provides insights into the behavior of the field, such as sources and sinks, which are areas where the field lines originate or terminate, respectively. The mathematical operation to find divergence involves applying the del operator (or nabla) to the vector field. By doing so, we utilize partial derivatives with respect to each coordinate to measure how the field behaves spatially in its local neighborhood.

Understanding divergence is crucial in various scientific fields, including fluid dynamics, electromagnetism, and more, as it helps in interpreting how properties like fluid, electric, or magnetic fields change in space. To solve this particular problem, one must calculate the partial derivatives of each component of the vector field with respect to its corresponding variable and then sum these results. This approach boils down to effectively applying rules of differentiation in a multivariate context. By grasping divergence, students develop an understanding essential for advanced topics like the Divergence Theorem, which links surface integrals to volume integrals.

Posted by Gregory 2 hours ago

Related Problems

Consider the vector field F = ⟨(x²)y, -x/y, xyz⟩. Find the curl by taking the determinant of the matrix with i, j, k; d/dx, d/dy, d/dz; (x²)y, -x/y, xyz.

By hand, draw the vector field F(x,y)=yi^xj^\mathbf{F}(x, y) = y\hat{i} - x\hat{j} and plot various points to visualize the pattern.

Use the computer to plot the vector field F(x,y)=yi^xj^\mathbf{F}(x, y) = y\hat{i} - x\hat{j} and observe the pattern that emerges for different densities and length scalings.