
R A D I A T I O N I... A S T R O P H Y S I... E D W A R D B R O W...
... When an electromagnetic wave passes through some medium, the oscillating electric field perturb the charges in the medium; those oscillating charges in turn emit electromagnetic radiation. Some of this radiation may be sent back along the path of the original radiation, forming a reflected wave; som ...
... When an electromagnetic wave passes through some medium, the oscillating electric field perturb the charges in the medium; those oscillating charges in turn emit electromagnetic radiation. Some of this radiation may be sent back along the path of the original radiation, forming a reflected wave; som ...
Practical Guide to Derivation
... Should someone who reads this guide ever find his way to third-year calculus, he may find the explanation of the partial derivative helpful. Partial derivatives become necessary when working with 3-dimensional functions. In such cases, z is a variable which controls the height of the otherwise x-y f ...
... Should someone who reads this guide ever find his way to third-year calculus, he may find the explanation of the partial derivative helpful. Partial derivatives become necessary when working with 3-dimensional functions. In such cases, z is a variable which controls the height of the otherwise x-y f ...
mat 117 week 2 lesson plan
... Parallel and Perpendicular Lines Warm up example or activity: (5 min.) Demonstrate that the streets in the local area are like our mathematical mapping system. For example, ask what the streets Rural Rd and University look like on the map. (They are perpendicular.) Then ask about University and McC ...
... Parallel and Perpendicular Lines Warm up example or activity: (5 min.) Demonstrate that the streets in the local area are like our mathematical mapping system. For example, ask what the streets Rural Rd and University look like on the map. (They are perpendicular.) Then ask about University and McC ...
TUSD`s Mathematics Curriculum - Algebra 1
... High school students start to examine problems by explaining to themselves the meaning of a problem and looking for entry points to its solution. They analyze givens, constraints, relationships, and goals. They make conjectures about the form and meaning of the solution and plan a solution pathway r ...
... High school students start to examine problems by explaining to themselves the meaning of a problem and looking for entry points to its solution. They analyze givens, constraints, relationships, and goals. They make conjectures about the form and meaning of the solution and plan a solution pathway r ...
Partial differential equation

In mathematics, a partial differential equation (PDE) is a differential equation that contains unknown multivariable functions and their partial derivatives. (A special case are ordinary differential equations (ODEs), which deal with functions of a single variable and their derivatives.) PDEs are used to formulate problems involving functions of several variables, and are either solved by hand, or used to create a relevant computer model.PDEs can be used to describe a wide variety of phenomena such as sound, heat, electrostatics, electrodynamics, fluid flow, elasticity, or quantum mechanics. These seemingly distinct physical phenomena can be formalised similarly in terms of PDEs. Just as ordinary differential equations often model one-dimensional dynamical systems, partial differential equations often model multidimensional systems. PDEs find their generalisation in stochastic partial differential equations.