src/Matrix.cpp: fixed error in routines CSRorCOO2DNS, DNS2COO e.t.c.
src/Matrix.cpp: fixed error in routines CSRorCOO2DNS, DNS2COO e.t.c.

ostravaTokyo/hfls,ostravaTokyo/hfls,ostravaTokyo/hfls,ostravaTokyo/hfls