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Calculus Lectures by Prof. Strang (Part 2)

More Calculus Lessons

These are a series of Highlights of Calculus Lectures given by Professor Gil Strang from MIT. They give an overview of Calculus and are suitable for High School students and College Students.

Gil Strang’s Introduction to Calculus for Highlights for High School

Gil Strang gives an overview of his video series Calculus for MIT’s Highlights for High School program. Designed to give an easier introduction to calculus.

Big Picture of Calculus

Calculus is about change. One function tells how quickly another function is changing. Professor Strang shows how calculus applies to ordinary life situations, such as:

- driving a car
- climbing a mountain
- growing to full adult height.

Big Picture: Derivatives

Calculus finds the relationship between the distance traveled and the speed - easy for constant speed, not so easy for changing speed. Professor Strang is finding the “rate of change” and the “slope of a curve” and the “derivative of a function.”

Max and Min and Second Derivative

At the top and bottom of a curve (Max and Min), the slope is zero. The “second derivative” shows whether the curve is bending down or up. Here is a real-world example of a minimum problem:

What route from home to work takes the shortest time?

The Exponential Function

Professor Strang explains how the “magic number e” connects to ordinary things like the interest on a bank account. The graph of y = e^{x} has the special property that its slope equals its height (it goes up “exponentially fast”!). This is the great function of calculus.

Big Picture: Integrals

The second half of calculus looks for the distance traveled even when the speed is changing. Finding this “integral” is the opposite of finding the derivative. Professor Strang explains how the integral adds up little pieces to recover the total distance.

I know the speed at each moment of my trip, so how far did I go?

Derivative of sin x and cos x | MIT Highlights of Calculus.

Product Rule and Quotient Rule | MIT Highlights of Calculus.

Chains f(g(x)) and the Chain Rule | MIT Highlights of Calculus.

More Calculus Lectures by Prof. Strang (Part 2)

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