The tutor shows the easy definite integral function on the Sharp EL-520W. While indefinite integrals such as ∫(xsinx)dx remain out of reach from calculators I know, the definite integral ∫0Π(xsinx)dx is easy to find on the Sharp EL-520W. You want …
Calculator use: definite integrals on the Sharp EL-520W Read more →
The tutor works lim(x→0+) x^x. The ability to evaluate a limit often depends on what’s in your “bag of tricks.” Here’s a first-year limit that uses a few: Example: Find limitx→0+x^x Solution: We can imagine y=limitx→0+x^x then use the log …
Calculus: a limit feat. the log trick and l’Hôpital’s rule Read more →
Tutoring calculus, your students will need to know this. The tutor introduces it. Once a calculus student learns the chain rule, they need to use it virtually all the time. It’s like learning to read when you’re a kid: once …
Tutoring calculus, this topic is of importance. The tutor is happy to introduce implicit differentiation. Implicit differentiation might come up a few weeks into the semester. It’s a nice technique that enables the student to take derivatives of functions not …
Tutoring calculus, this might be the first derivative rule you need to emphasize. The tutor opens up the discussion…. The product rule is not the first derivative rule people learn, but it might be the first non-intuitive one. The other …
With exams looming, people might come to tutoring with questions about their calculators: What does it do (besides the obvious)? How can it really help me? The tutor offers a handy hint about the CASIO fx-991ES. Some exams don’t allow …
Calculus: Finding the derivative with the CASIO fx-991ES Read more →
Tutoring calculus, you might be asked about the derivative of a^x from time to time. The math tutor shows the trick to this old favourite. Example: Find the derivative of a^x Solution: As in so many cases, the trick here …