$This lecture of Professor Arthur Mattuck's Spring 2003 Differential Equations course covers complex numbers and complex exponentials.$

$This educational video teaches children the basic concept of division, using the numbers from 1 to 30.$

Quest for Power 2

Description: Quest for Power 2 is an action game where you try to conquer all of England. Help King Arthur defeat the evil kings and queens!

Instructions:

Use the up and down arrow keys to aim the cannon.
Use the "a", "s", and "d" keys or the left and right arrow keys to scroll the view. Alternatively, left-click the arrow bars that appear when you hover at either edge of the screen.
Press the "space" bar to fire the cannon.
Left-click troops, fortifications, or spell icons at the bottom of the screen to purchase these items. Left-click the area to the left of the yellow flag to place ranged troops or fortifications.
Left-click the "1x", "2x", "3x", or "4x" button at the top of the screen to change the zoom.
Left-click the "Q", "S", "M", and "P" buttons in the lower-right corner to quit, toggle the sound, toggle the music, or toggle the pause respectively.