Kategorier: Alla - laplace - linear - separation - conditions

av Luke Berhold för 11 årar sedan

263

Differential Equations

When determining whether a differential equation is linear, one should check if it can be expressed in the form y' + p(t)*y = f(t). If it can, it is linear, and methods such as separation of variables, direct integration, or using an integrating factor can be applied.

Differential Equations

Is Your Differential Equation Linear?

Linear

Can It be put in the form: y' + p(t)*y = f(t)?
Can the Variables be separated to all t on one side and y on the other? ex: (2y)dy = (1/t)dt

Can the Equation be integrated Directly?

Try Checking The Non-Linear Side!

Integrate Directly!

Solve by separation of variables!

Use the integrating factor to solve.

Non-Linear

Were initial conditions given? Example: y(0)=1, y'(0)=0
Does the function contain an exponential and can be placed in a similar order to: y' = (r1 * x) + C*e^(r2*t) ?

Is it a second order differential equation equal to an exponent, constant or trig function?

Is it in the form of a matrix/system of equations?

Try Checking the Linear Side!

Solve using Eigen Vectors/Values

Solve using Undetermined Coefficients

Solve Using Variation of Parameters

Solve Using Laplace