EGR 224/Spring 2023/Lab 00

At The Beginning of Lab

Create / Log-in to a Google Account

• Go to https://www.google.com and sign in; if you do not have a Google account, create one

Log-in to Google Drive

• In another tab in the same browser, go to https://drive.google.com

Log-in to Google Colab

• In another tab in the same browser, go to https://colab.research.google.com
  • In the Colab tab, click File and select "New notebook" - among other things, if you haven't gone here before, this will create a "Colab Notebooks" folder in your Google Drive

Get files from Sakai on your computer

• In another tab in the same browser, go to https://sakai.duke.edu/
• Get the HW00soln.zip folder:
  • In the Sakai tab:
    • Go to the page for EGR 224
    • Click on the "Resources" link at left
    • Click on the "HW 0 Files" folder in Resources
    • Right-click the "HW00soln.zip" file and save it to your computer
• Get the sym_helpers.py file:
  • In the Sakai tab:
    • Click on the "Helpers" folder in the "HW 0 Files" folder
    • Right-click the "sym_helper.py" file and save it to your computer

Expand and upload the HW00soln folder to Google Drive

• On your computer:
  • Find and open the HW00soln.zip file
    • On Windows, click the "Extract all" icon at the top of the page when you open the file -- keep track of where it extracts the file to
    • On macOS,
• In the Google Drive tab, double-click on the "Colab Notebooks" folder to open it
  • Right-click in the blank space and select "Folder Upload"
  • Go find where your extracted the "HW00soln" folder is and drag it into the "Colab Notebooks" folder

Create a Helpers folder and upload sym_helper.py

• In the Google Drive tab, double-click on the "Colab Notebooks" folder to open it
  • Right-click in the blank space and create a new folder called "Helpers"
  • Double-click the "Helpers" folder
  • Go find where your downloaded "sym_helpers.py" and drag it into the "Helpers" folder

Open and run the findfits.ipynb notebook

• In the Google Drive tab, double-click on "Colab Notebooks" then "HW00soln" then "findfits.ipynb" -- Google Colab should automatically open a new tab with the "findfits.ipynb" notebook.
  • If your browser tries to open findfits.ipynb but says there's no way to preview it instead of opening Google Colab, try this:
    • At the top of the "no preview" page there should be a box with a down arrow on the right side
    • Click the down arrow to add apps
    • Scroll down in that window a little and Google Colaboratory should be there - click on it
    • Uninstall it, then install it
    • when you go back to the window, that box at the top will have "Open in Colaboratory" in it
• In the "findfits.ipynb" tab, click "Runtime" and select "Run all". As the notebook is running, it should ask if you will permit your notebook to access your Google Drive files. You should allow it to...

Access Dr. G's linear algebra examples

• Open a new browser tab and point it at https://drive.google.com/drive/folders/10NuAAl4yWpsapZesm2snnWOgMtBb-tP2?usp=sharing
• Double-click on linalg_1_basic.ipynb
  • Note: if you run it, you will get a "folder not found" error in one of the steps. You can ignore that for now!

Open the Pundit page for the assignment

• In another tab in the same browser, go to Homework 0

At the end of lab

• Install Google Drive for desktop: Use Google Drive for desktop at home, work, or school. This will allow you to have direct access to your Google Drive through the Explorer / Finder
• Go to https://sakai.duke.edu/ and specifically to EGR 224
  • Click on the "Gradescope" link at left
  • Go to "Assignment 0"
  • Upload the five .ipynb files we made for "Homework 0"