Scotto - Calculus - Homework/Study Tips - Teens

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Expert Profile: Scotto

Expertise: Any kind of mathematics (algebra, geometry, trigonometry, matrices, calculus, linear approximation, linear regression, linear programming, numerical analysis, probability, statistics, etc.). I also have answered some questions in Physics, Chemistry, and Biology. I would like to volunteer in all areas of Mathematics, not just calculus, and the other three courses that were mentioned.
Experience in the area: I have tutored students in all areas of mathematics for over 20 years. Education/Credentials: BSand MS in Mathematics from Oregon State University, where I completed sophomore course in Physics and Chemistry. I received both degrees with high honors. Awards and Honors: I have passed Actuarial tests 100, 110, and 135.

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What do you still hope to achieve/learn in this field? Doing even more mathematics. Maybe somebody wants me to do this for work, but until then ...

Something interesting about this subject that others may not know: The natural log of e is 1 [ ln(e)=1 ], but did you know that e=2.71828182845905... or that pi, the usual 3.14, is really 3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 ...

Something controversial or provocative about this subject Some people have controversies in statistics. When they say average, there are three different ways to do it. Some are interested in (max-min)/2, some are interested in the midway point, and some are actually interested in the true average (add 'em up and divide by n). This might not actaully be controversial, but at least you have read something here.

What do you like about this subject? Its fun for me to do when I fall asleep - called date-powers. Like say it was the 21st. That's 3*7. 3^4=81. 7^4=2401. 3^2*7^2=441. 3^8=6561. 7^8=5,764,801. Then to do a little more, I look at all combinations of 8 numbers using 3 and 7. Having done that, I then try 9 of them. You know, 3^9 = 19,684; 3^8*7=45,927; 3^7*7^2=107,163; etc.

Average Ratings
Prestige Points: 2700
Knowledge	9.79 Best of the best
Clarity of Response	9.37 Excellent
Timeliness	9.67 Best of the best
Politeness	9.92 Best of the best
Number Of Questions (in Past 24 Hours)		0
Max Questions to be Asked (in 24 Hour period)		6
Total Questions (since joining AllExperts)		410

Recent Reviews from Users

Knowl	Clarity	Time	Politeness	Date
10	10	10	10	07/23/08
10	10	10	10	07/23/08
10	10	10	10	07/22/08
10	10	10	10	07/23/08
10	10	10	10	07/21/08

User Comments

Seriously, the best ever.
(Anthony on 07/23/08)

Your AWESOME and faster than a PC!!! :)
(Amber on 07/23/08)

You're the best. Great explanations, easy to understand, and fast! Thank you!1
(Anthony on 07/22/08)

Very helpful, thank you Scotto!
(Stu on 07/23/08)

Thanks: that's essentially what I tried, but it does require a degree of mathematical savvy that I certainly wouldn't expect of a whole classroomful o
(Brian on 07/21/08)

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Recent Answers from Scotto

2008-07-22 Trig Functions: They might mean the second approach I took, or they might mean to find the six trig functions on an anlge between 0° and 90° (0 and π/2 radians). Approach 1 (probably right) --------------------------...

2008-07-21 Calculus - Related Rates word problem: The width is 3 at the top and 0 at the bottom. The have a height of 1 foot. Using these two pieces of information, the width of the water is 3x where x is the depth that has been filled. The trough...

2008-07-21 Calculus 1: C(x)=450+30x+0.08x² (A) To find the average, integrate C(x) from the minimum number to the maximum number. It would be the difference in 450x+15x²-0.08x^3/3 between x=200 and x=0. At zero, the function...

2008-07-21 Integration: Let u=x, so du=dx and dv=xe^(-x²), so v=e^(-x²)/2. This problem fits in with the u-v problems where the integral(udv) = uv - integral(vdu). Integral(vdu) = integral(e^(-x^2)/2) from 0 to 1. This...

2008-07-20 Integration: That's the only way I know how to do the problem. If the answer is known it can be seen to be right. Maybe since the power of x is 0, you could take ln(x) and multiply by x. You could then look at...