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Expert: Alon Mandes - 9/29/2008


Question
How to sketch the surface with equation z^2= 2x + 4y^2

Answer
You may see that z^2= 2x + 4y^2 is not a 3D function but 3D object
symmetric along the x-y plane. & this object is consolidate with the
x-y plane along the curve x+y^2=0. What we want to do next is to
find the critical points by calculating the quadratic form & set
it equal to zero. & then to find the domain of increase & decrease.
You may use a numerical program applet such as MATLAB to sketch
such objects.

Alon.

Calculus

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Alon Mandes

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

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.

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