A softer, larger stool helps prevent straining, which can help avoid or relieve hemorrhoidal symptoms. High-Fiber Diet in Irritable Bowel Syndrome. Irritable Bowel Syndrome, sometimes called spastic colon or IBS, is one of the most common disorders of the lower digestive tract.
Dalton's Law of Partial Pressures, or Dalton's Law, states that the total pressure of a gas in a container is the sum of the partial pressures of the individual gases in the container. Here is a worked example problem showing how to use Dalton's Law to calculate the pressure of a gas.
Partial Differential Equation. A partial differential equation (PDE) is an equation involving functions and their partial derivatives; for example, the wave equation. (1) Some partial differential equations can be solved exactly in the Wolfram Language using DSolve[eqn, y, x1, x2], and numerically using NDSolve[eqns, y, x, xmin, xmax, t, tmin, tmax].