We claim the ornamental design for a laptop computer, as shown and described.
FIG. 1 is a rear, top, right view of the claimed design in a first configuration;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left side elevation view thereof; and
FIG. 7 is a right side elevation view thereof;
FIG. 8 is a rear, top, right view of the claimed design in a second configuration;
FIG. 9 is a front elevation view thereof;
FIG. 10 is a rear elevation view thereof;
FIG. 11 is top plan view thereof;
FIG. 12 is a bottom plan view thereof;
FIG. 13 is a left side elevation view thereof; and,
FIG. 14 is a right side elevation view thereof.
The broken lines showing portions of the laptop computer are included for the purposes of illustrating portions of the article and form no part of the claimed design.