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Calculus/Expert Profile

Alon Mandes

Israel

Available

Expertise

Kind of questions I can answer : Limits, Derivatives, Integration, Implicit functions, continuousity, differentiation ,Extremum problems, Lagrange multipliers, Gradients, Surface integrals, Multi variables functions ,Multi variables Integrals,Complex variables ,Complex functions, Curves, Trajectory integrals & Vector analyse,Divergence,Rotor & word problems. Kind of question I can't answer : Economics,Combinatorics,infinite series & convergence ,Statistics & Probabilities .

Experience in the area

1. I'm a team member of mathnerds (math site for answering questions) 2. I'm a team member in the Student's Union of the Technion, helping students who have problems in mathematics. 3. 2 years of experience as a math teacher in college. 4. I give free homework help for high school students in Mathematics & Physics. 5. I teach part time in collage the subjects : "Digital Signal Processing" , "Random Signals & Noise" , "Complex Functions".

Organizations

Hi-Tech company : GSM4VOIP ; job possition : Algorythm developer.

Education/Credentials

M.A in Mathematics & Bs.c in Electronics.

Average Ratings

Recent Reviews from Users

User	Date	K	C	T	P	Comments
Cindy	11/05/09	10	10	10	10	Thank you, so much!
CC	11/05/09	10	10	10	10	Prompt and helpful. Thanks!
najran	11/05/09	10	10	10	10	thank u for the help once again .....
Cindy	11/04/09	10	10	10	10	Thank you for your help! Cindy
najran	11/04/09	10	10	10	10	Thank you so much, it definitely made .....

Recent Answers from Alon Mandes

2009-11-07 Optimization Problem:

If x is the side of the square and y the length of the box, then : Volume=yx²2 & girth=y+4x≤100 . f(x)=yx²=(100-4x)x² . The interval will be [a,b] where : a=x=1 then y=96 & y=1 then b=x=99/4 .

2009-11-07 Calculus:

The mean value theorem states that f(x) is continuous on the closed interval [-1,1], & differentiable on the open interval (-1,1). We can clearly see that f(x)=x^(1/3) has singularity at x=0 . However

2009-11-05 Lines tangent to ellipse:

Let's suppose that the point where the tangent line touch the ellipse is (xo,yo). We can find a relation between xo %26 yo, by substituting (xo,yo) in the equation of the ellipse : (xo²/4)+(yo²/9)=1

2009-11-05 precalculus!!!:

4th degree polynomial has 4 zeroes. We have been given 2, we need to find the other 2. Since complex zeroes come in pairs, that mean that -2+5i is also a zero ("it's the conjugate"). The last zero can

2009-11-05 Unknown values:

It's given that f(2)=1. Therefore : A(2)e^(B(2)^2)=1 --> 2Ae^(4B)=1 --> A=1/[2e^(4B)] --> A=(1/2)e^(-4B) . We also know that at x=2 there is maximum. So, we derive the function & substitute x=2 & set

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