Express Your Answer As A Signed Integer

Express Your Answer As A Signed Integer

In programming, a signed integer is a data type that can represent both positive and negative numbers. It is typically represented by a two’s complement representation, which means that the most significant bit (MSB) is used to represent the sign of the number. A 0 in the MSB represents a positive number, while a 1 represents a negative number.

The syntax for expressing an answer as a signed integer varies depending on the programming language. In general, you can use the following format:

signed_integer = expression 

For example, the following code would express the answer of the expression 5 + 2 as a signed integer:

signed_integer = 5 + 2 

This code would assign the value 7 to the variable signed_integer.

Questions related to Express Your Answer As A Signed Integer

Here are some questions related to Express Your Answer As A Signed Integer:

• What is the difference between a signed integer and an unsigned integer?
• How do you represent a negative number in a two’s complement representation?
• What is the range of values that a signed integer can represent?

Answers to questions related to Express Your Answer As A Signed Integer

What is the difference between a signed integer and an unsigned integer?

The main difference between a signed integer and an unsigned integer is that a signed integer can represent both positive and negative numbers, while an unsigned integer can only represent positive numbers.

In a two’s complement representation, a negative number is represented by flipping all the bits of the corresponding positive number and adding 1. For example, the two’s complement representation of the negative number -5 is 11110101.

How do you represent a negative number in a two’s complement representation?

To represent a negative number in a two’s complement representation, you can follow these steps:

1. Flip all the bits of the corresponding positive number.
2. Add 1.

For example, to represent the negative number -5 in a two’s complement representation, you would first flip the bits of the positive number 5, which gives you 11110101. Then, you would add 1, which gives you 11110110.

What is the range of values that a signed integer can represent?

The range of values that a signed integer can represent depends on the number of bits used to store the integer. For example, a 32-bit signed integer can represent values from -2^31 to 2^31 - 1.

Here is a table that shows the range of values that a signed integer can represent for different numbers of bits:

Conclusion

Expressing your answer as a signed integer is a common task in programming. By understanding how to represent negative numbers in a two’s complement representation, you can easily express your answer as a signed integer in any programming language.