need definition for coordinate grid for math   I also need definition for coordinate system?
115042
I believe you are talking about Cartesian coordinates, right?
612943
geometry using formulas and numbers, with good analytical description to show a problem or solution.\nIt does not rely on a picture, a diagram,nor solve a problem graphically. It solve a problem analytically.
431661
That is spherical geometry.  Geometry that describes the properties of figures drawn on the surface of the sphere.
473627
on a graph every point has an x and y coordinate.  The vertical(up-down) is the Y-coordinate, the horizontal (left-right) is the x-coordinate
874769
Sultan - you might want to expand on your question - what exactly do you mean?  An alternative grid might be useful if it helps you pinpoint features on the map and perhaps relate them to features on another map which uses a similar grid but . . .
58657
In algebra, a,b,c...are usually used for constants and ...x,y,z for variables. This was started by Descartes, who founded analytic geometry and came up with the Cartesian grid. From the listed source: "Descartes routinely used the lower case letters x, y, and z as variables, and a, b, and c as constants, and our modern convention stems from his usage.  Descartes, however, had no convention about which variable was used horizontally, or in which direction (right or left) a variable was being measured".
353289
This is a method like grid squares on a map so you can specify a point relative to a known origin by x distance right and y distance up. \nIf three planes are used you can also specify a point in 3D space so that if you lay your sheet of paper flat with x and y marked, the z distance is above the paper, like height of a mountain above a flat map.\nLeft and down are given negative values.\nAs well as defining single points, you could specify shapes according to how the distance in the y direction relates to the x distance.\nSo x = y (often more confusingly written as x-y = 0 ) defines a line connecting points (x,y) such as (1,1) (2,2) (5,5) (1000,1000) at 45 degrees between the x and y axes.\nAlso, more advanced, X cubed + y cubed + z cubed = 27 is a sphere, centred on O with a radius of 3
299290
First is the spelling.  It's trigonometry.\n\nSecond is the question.  You would need to be more specific.  There are many good online sources for that.  Just google it and search the sites.  There will be some university level sites or some simpler ones too.
51949
The cartesian coordinate system is the (x,y) system that we are used to using when plotting graphs and solving equations. Graphically, you move over x units horizontally and up y units vertically from the origin.\n\nThe polar coordinate system is the (r,theta) system which is based on circles rather than rectangles. The important thing to note is that r is a distance, whereas theta is an angle. Graphically, you have an origin and you move out r units horizontally and then you rotate by theta degrees. Usually take r>0 or r=0.\n\nThe two coordinate systems are connected by the simple equations:\n\nx=r*cos(theta)\ny=r*sin(theta)
1093701
Parallelogram:\na. 4 sides\nb. 1 set of opposite sides is parallel\nc. 1 more set of opposite sides being parallel\n\nQuadrilateral:\na. 4 sides\nb. 1 set of opposite sides is parallel\n\nAs can be seen above, the conditions for the Parallelogram is a super set of the Quadrilateral. A Quadrilateral needs one more condition to become a Parallelogram (another set of opposite sides being parallel).
280184
A coordinate plane is the whole plane defined by two intersecting axes, let's call them x and y.\nA quadrant is the part of the coordinate plane defined by taking only the positive or negative half of each axis.\n\nThere are four quadrants in the plane, usually numbered as follows:\n1st quadrant: {x>0, y>0}\n2nd quadrant: {x<0, y>0}\n3rd quadrant: {x<0, y<0}\n4th quadrant: {x>0, y<0}
638682
Domain ~ x values\nRange ~ y values\n\nYou have to work the function and figure them out.
691753
maybe a hexagonal prism http://en.wikipedia.org/wiki/Hexagonal_prism http://en.wikipedia.org/wiki/Prism_%28geometry%29
128133
A hexakaidecagon (hexadecagon).\n\nFor the rest of the polygon questions you'll have, try the link below:
432979
Try these (math dictionaries):\n\nhttp://www.teachers.ash.org.au/jeather/maths/dictionary.html\n\nhttp://www.mathwords.com/\n\nhttp://www.intermath-uga.gatech.edu/dictnary/homepg.asp\n\nhttp://www.harcourtschool.com/glossary/math2/index_temp.html\n\nThere are many more, but these should get you started.
623587
It's a method of solving mechanical problems. Basically it's determined by L = T - V where T is the kinetic energy and V the potential. Finding T and V really depends on the problem. You use generalized coordinates, normally denoted by q, as opposed to x, y, z or whatever. Once you get the hang of it it can be extremely useful to solve seemingly difficult mechanical problems (like a pendulum on a pendulum for example.) Look it up on Wikipedia for more information.
792610
Try these;\nhttp://www.mathleague.com/help/geometry/geometry.htm\nhttp://www.coolmath.com/home.htm\nhttp://www.ics.uci.edu/~eppstein/geom.html