Oomair
- 36
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Homework Statement
im having problems on how to sketch 3D functions, like z=4-x-y, any tips or website that gives a summary and useful techniques to graph functions like this?
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im having problems on how to sketch 3D functions, like z=4-x-y, any tips or website that gives a summary and useful techniques to graph functions like this?
Discussion
rootX
- 480
- 4
-Use Matlab 
-make either x or y = 0 and then find how the thing looks in z-y or z-x plane
-find what happens when x--> inf y=0 or y--> inf , x =0 or y-->inf x -->inf
-Draw contours (should have learned them before getting into 3d)
-make either x or y = 0 and then find how the thing looks in z-y or z-x plane
-find what happens when x--> inf y=0 or y--> inf , x =0 or y-->inf x -->inf
-Draw contours (should have learned them before getting into 3d)
jhicks
- 340
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I agree with rootx. plotting the functions when x or y = 0 is a good tool.
rocomath
- 1,752
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I still don't quite understand contours :(
rootX
- 480
- 4
neither me ><
using k = 0,1,2.. works most times..
sometimes, using z-x and z-y plane
or, converting to rec/spherical co-ods
using k = 0,1,2.. works most times..
sometimes, using z-x and z-y plane
or, converting to rec/spherical co-ods