## Invitation to Computer Science 8th Edition

Because the leftmost digit is a $1,$ the number is negative. The magnitude is represented by the remaining 7 digits, $0010111,$ which is $1+2+4+$ $16=23 .$ Thus, the number is $-23 .$
Because the leftmost digit is a $1,$ the number is negative. The magnitude is represented by the remaining 7 digits, $0010111,$ which is $1+2+4+$ $16=23 .$ Thus, the number is $-23 .$