The document contains multiple code snippets that demonstrate various mathematical functions in BASIC programming language. These functions include ABS, SQR, FIX, and INT. ABS returns the absolute (positive) value of a number. SQR returns the square root of a number. FIX and INT return the integer portion of a number by removing any decimals. The output of each program is provided to illustrate how the different functions work.

1. Type the program and run it.

2. What is the output of this program?
CLS
READ num1
num2 = ABS(num1)
PRINT num2
END
DATA 12

3. What is the output of this program?
CLS
READ num1
num2 = ABS(num1)
PRINT num2
END
DATA – 4

4. What does ABS function do?

5. What is the output of this program?
CLS
READ num
PRINT SQR(num)
END
DATA 9

6. What does SQR function do?

7. Write the output of this program.
CLS
READ num
PRINT FIX(num)
END
DATA 7

8. Write the output of this program.
CLS
READ num
PRINT FIX(num)
END
DATA – 16

9. What does FIX function do?

10. Write the output of this program.
CLS
READ num
PRINT FIX(num)
END
DATA 7.3

11. Write the output of this program.
CLS
READ num
PRINT FIX(num)
END
DATA 7.9

12. What does FIX function do?

13. Write the output of this program.
CLS
READ num
PRINT FIX(num)
END
DATA – 7.9

14. What does FIX function do?

15. Write the output of this program.
CLS
READ num
PRINT INT(num)
END
DATA 5.3

16. What does INT function do?

17. Write the output of this program.
CLS
READ num
PRINT INT(num)
END
DATA – 23.12

18. What does INT function do?