Test if a point, a list, or a set of points is on a given object
IsOnObject(f, obj, cond)
point, list or set of points
line, plane, or sphere
The routine returns true if the point f or the list/set of points f is on object obj; false if it is not; and FAIL if it is unable to reach a conclusion.
In case of FAIL, if the third optional argument is given, the condition that makes f on object l is assigned to this argument. It will be either of the form expr=0 or of the form &and⁡expr_1=0,...,expr_n=0 where expr, expr_i are maple expressions.
The command with(geom3d,IsOnObject) allows the use of the abbreviated form of this command.
Find the equation of the plane through the line (3*x-4*y+5*z=10, 2*x+2*y-3*z=4) and parallel to the line x=2*y=3*z
check if line l2 lies in the plane p, line l1 is parallel to plane p
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