The ornamental design for a laptopcomputer, as shown and described.
FIG. 1 is a front elevation view of a laptop computer showing our new design. The features shown in broken lines in the drawings depict environmental subject matter only and form no part of the claimed design.
FIG. 2 is a back view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a back perspective view thereof; and,
FIG. 8 is a front perspective view thereof with the cover in an open position.