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MAT 3724 Applied Analysis I. 1.0 Review. http://myhome.spu.edu/lauw. Teams. HW. Download HW 1.0. Preview. Integrating Factor (Linear First Order ODE) Multivariable Chain Rule Be sure to pay attention to expected presentation. ODE, PDE. Ordinary Differential Equations
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MAT 3724Applied Analysis I 1.0 Review http://myhome.spu.edu/lauw
HW • Download HW 1.0
Preview • Integrating Factor (Linear First Order ODE) • Multivariable Chain Rule • Be sure to pay attention to expected presentation.
ODE, PDE • Ordinary Differential Equations • Partial Differential Equations
Linear (First Order) D.E. Technique: Multiply both side by the integrating factor
Verify… Verify is the general solutions
Expectations • When there are two groups of related calculations, do not mix them up.
Two-Column Format • Integration by parts, substitutions, partial fractions, …
Example 2 **Reminder: Tell Wai to specify the interval at the end. He usually does not remember. You can take one point off from him. Ha, ha!
Example 3 Find
Example 4 Find
Other Cases • Similar
Example 5 Show that is a solution of the Laplace’s Equation
Expectations • Always start with one side and show that it equals to the other side. • Normally, it is easier to start with the side with more complicated.
Example 6 Find all the u(x,t) such that