I'm currently taking calculus ("differential calculus of several variables") and I really dislike math (even though I used to like math), but it's required for my major (comp sci). My teacher can't draw and does not show us graphics of 3-D graphs and functions, so I have a hard time 'seeing' the math. The textbook I'm using isn't really good (not as helpful as the textbook I used for single variable calculus). Do you have suggestions to help me learn math and make it more interesting? Are there any helpful visual tools online? Thanks in advance for any suggestions.