RosettaCodeData/Task/Element-wise-operations/PARI-GP/element-wise-operations-2.pari

addMs(A,s)=A+matrix(#A[,1],#A,i,j,s);
subMs(A,s)=A-matrix(#A[,1],#A,i,j,s);
powMs(A,s)=matrix(#A[,1],#A,i,j,A[i,j]^s);