Solving Differential Equations

any IVP

Yes: insert IVP into general solution

No: find general solution

General Solution

Higher Order DE

Homogenous?

Yes: Find Homogenous Solution

Use Complex Characteristic Roots

Use Real Charaacteristic Roots

Check for repeated roots

Use Undetermined Coefficients

Use Variation of Parameter

No:Find Homogenous and Particular Solution y(t) = yh(t) + yp(t) (Non-homogenous)

Laplace Transformation

System of first order DE

Use Eigenvalues and Eigenvectors

Any of the other used to find Homogenous solution

First Order DE

Integrate Directly?

Yes: Integrate and solve for y

No: try and separate

Separtable?

Yes: integrate and solve for y

No: Try integrating Factor

Can be written in the form y'+P(t)=f(t)

Yes: use integrating Factor

No:Use Euler's Method