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>perl -wMstrict -le "for (-2.0,-1.9,-1.5,-1.1,-1.0,-0.9,-0.5,-0.1,-0) { ... -0.5 -> 0, 0.000000000000000000000000e+000 -0.1 -> 0, 0.000000000000000000000000e+000 0 -> 0, 0.000000000000000000000000e+000