1) I introduced some comments on the Sage worksheet “Separable Differential Equations” to help you understand the commands in each cell.
You can access the new worksheet at cloud.sagemath.org:
or download from Dropbox:
2) The Euler’s Method.sagews can be accessed at
You only need the commands in the first cell. Adjust the code according to the directions on the very top.
If you still have any questions, please let me know.