#### Examples.

- Input:
  C:= point(1+i)
  Output:
  Input:
  nodisp(C:= point(1+i))
  Here, the point C is defined but not displayed. It is equivalent to following the command with :;,
  Input:
  C:= point(1+i):;
  To define a point as above and display it without the label, enter the point’s name;
  Input:
  C
  Output:
  Alternatively, you can get the same effect by defining the point within an eval statement:
  Input:
  eval(C:= point(1+i))
  To later display the point with a label, use the legend command:
  Input:
  legend(C,"C")
  or:
  point(affix(C),legend="C")
  Output:
  In this case, the string "C" can be replaced with any other string as a label. Alternatively, redefine the variable as itself:
  Input:
  C:= C
  prints C with its label.