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Difference between revisions of "Cartesian coordinate system"
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Latest revision as of 21:09, 11 September 2009
Cartesian coordinate system
dim 1
the number line
point P < - > number x
distance between points x and x' is |x-x'|
dim 2
the plane
point P < - > pair of numbers (x,y)
Plotting point P represented by coordinates (x,y):
dim 3
the space
point P < - > triple of numbers (x,y,z)
Sketch a vector:
Distance formula: