Expression 2: "d" Subscript, "i" "g" "i" "t" "s" "W" "h" "o" "l" "e" , Baseline left parenthesis, "x" , right parenthesis equals left brace, floor left parenthesis, StartAbsoluteValue, "x" , EndAbsoluteValue , right parenthesis equals 0 : 1 , floor left parenthesis, log left parenthesis, floor left parenthesis, StartAbsoluteValue, "x" , EndAbsoluteValue , right parenthesis , right parenthesis , right parenthesis plus 1 , right bracedigitsWholex=floorx=0:1,floorlogfloorx+1
2
Expression 3: "f" Subscript, "i" "r" "s" "t" "N" "D" "i" "g" "i" "t" "s" , Baseline left parenthesis, "x" , "n" , right parenthesis equals signum left parenthesis, "x" , right parenthesis floor left parenthesis, StartAbsoluteValue, "x" times 10 Superscript, "n" minus "d" Subscript, "i" "g" "i" "t" "s" "W" "h" "o" "l" "e" , Baseline left parenthesis, "x" , right parenthesis , Baseline , EndAbsoluteValue , right parenthesisfirstNDigitsx,n=signxfloorx·10n−digitsWholex