The ornamental design for a portablecircularsaw, as shown and described.
FIG. 1 is a front perspective view of a portable electric circular saw in accordance with our new design;
FIG. 2 is a rear perspective view of the portable electric circular saw in accordance with our new design;
FIG. 3 is a front elevational view of the portable electric circular saw in accordance with our new design;
FIG. 4 is a rear elevational view of the portable electric circular saw in accordance with our new design;
FIG. 5 is a top plan view of the portable electric circular saw in accordance with our new design;
FIG. 6 is a bottom plan view of the portable electric circular saw in accordance with our new design;
FIG. 7 is a right side elevational view of the portable electric circular saw in accordance with our new design;
FIG. 8 is a left side elevational view of the portable electric circular saw in accordance with our new design; and,
FIG. 9 is a front perspective view of the portable electric circular saw in accordance with our new design showing when rechargeable batteries are attached to the portable electric circular saw.
The broken line showing of environment structures in the drawings forms no part of the claimed design.