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athrun200
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In rectangular corr. 3i+j mean leght in x-direction =3 in y-3direction =1
However, how about in polar coorindate?
3r+1[itex]\theta[/itex] (r and [itex]\theta[/itex] are the unit verctor in polar coor., I don't know how to type it out, I hope you understand.)
Dose it mean a line with length 3 from origin and angle 1 radian from x-axis?
However, how about in polar coorindate?
3r+1[itex]\theta[/itex] (r and [itex]\theta[/itex] are the unit verctor in polar coor., I don't know how to type it out, I hope you understand.)
Dose it mean a line with length 3 from origin and angle 1 radian from x-axis?