octave a=[1:100]; b=strcat({'','fizz'}([1+!mod(a,3)]),{'','buzz'}([1+!mod(a,5)])); a=num2cell(int16(cellfun(@isempty,b)).*a); b(cellfun(@isempty,b))=0;

octave a=[1:100]; b=strcat({'','fizz'}([1+!mod(a,3)]),{'','buzz'}([1+!mod(a,5)])); a=num2cell(int16(cellfun(@isempty,b)).*a); b(cellfun(@isempty,b))=0; strcat(b,a)