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# Cylindrical and spherical coordinates.

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Write the equations

i) x^2 - y^2 - 2z^2 = 4 and

ii) z = x^2 - y^2 in

a) cylindrical coordinates
b) spherical coordinates

give detailed explanation for each step of the solutions.

##### Solution Summary

Cylindrical and spherical coordinates are determined.

##### Solution Preview

i.)
a.)
phi == p = angle in x-y plane with respect to X-Z plane
x = r*cos(p)
y = r*sin(p)
z = z
substitute the values in x^2 - y^2 - 2z^2 = 4
=> r^2 * cos^2(p) - r^2 * sin^2(p) - 2z^2 = 4
=> r^2 * cos(2*p) - 2z^2 = 4 ...

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###### Education
• MSc , Pune University, India
• PhD (IP), Pune University, India
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