10 items are filed under this topic.
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r=10cos(t) in cylindrical coordinates |
2013-05-18 |
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From r.m:
question from calculus exam: what is the figure obtained having eqn.r=10cos(t) in cylinderical coordinates?
i know it is a cylinder with center (5,0) ,but can't the equation represent two cylinders ,one with center
(5,0) and the other with center (-5,0).
thanks for any help.
Answered by Penny Nom. |
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Polar coordinates |
2010-04-14 |
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From Lan:
Given the rectangular equation (x^2)+2x+(y^2)+y=0, find the polar equation.
Answered by Harley Weston. |
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Integration of cos (x^2+y^2) dx dy |
2010-02-12 |
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From anna:
How do you evaluate the integration of integration of cos (x^2+y^2) dx dy?
Answered by Tyler Wood. |
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Three points on the circumference of a circle |
2007-07-30 |
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From Bharathi:
given a circle with radius r and a point x,y on its circumference,output two other
points x1,y1 and x2,y2 on the circle so thar all 3 points form a equilateral triangle.
Answered by Stephen La Rocque. |
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Polar to Cartesian coordinates |
2006-01-15 |
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From Linden:
How do you convert six units at 30 degrees Polar Coordinate into a Cartesian Coordinate?
Answered by Penny Nom. |
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A triangle in the complex plane |
2003-07-10 |
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From Scott:
The vertices O and A of an EQUILATERAL triangle OAB in the complex plane are located at the origin and 3 + 3i. Find all possible values for the complex number representing the vertex B. Give the location of B in both polar and cartesian form (to 2.d.p)
Answered by Penny Nom. |
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Polar coordinates |
2000-02-24 |
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From Tran Trung:
How do I convert r = 2/(2sin(theta) - 3cos(theta)) to rectangular and x2 + y2 -2y = 0 to polar form?
Answered by Harley Weston. |
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A valentines project |
2000-02-21 |
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From Courtney Dohoney:
I was assigned a valentines project. Our job is to make a valentines card that has a math theme. On my valentines card I would like to include the set of equations that when graphed look like a heart. If you can figure out a set of equations and get it back to me I would be very happy.
Answered by Harley Weston. |
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A Polar Plot |
1999-05-06 |
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From Irene:
Consider the polar equation r=2-3Cos(theta/2) In the interval [o, 4Pi], how would you find the area of one of the leaves and also the length of one of the edges of a leaf?
Answered by Harley Weston. |
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Complex numbers/polar coordinates |
1999-03-25 |
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From Kate Cegelis:
What is the relationship between complex numbers and polar coordinates?
Answered by Harley Weston. |
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