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24.12.2  Abscissa of a point or vector in the plane

See Section 25.10.1 for abscissas in three-dimensional geometry.

The abscissa command finds the abscissa (x-coordinate) of a point.

Examples

abscissa(point(1+2*i))
     
1           
abscissa(point(i)-point(1+2*i))
     
−1           
abscissa(1+2*i)
     
1           
abscissa([1,2])
     
1           

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