FIG. 1 is a front, bottom, left side perspective view of a calculator showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a back elevational view thereof; and,
FIG. 7 is a front, bottom, left side view thereof, shown in an environment of use.
The broken lines depict environmental subject matter only and form no part of the claimed design.