# 10th Class Computer Science Chapter 5 Loop Control Structure Short Questions Answer

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## 10th Class Computer Science Chapter 5 Loop Control Structure Short Questions Answer

Define SIN Function.

The purpose of SIN function is to find the ratio called sine of an angle x expressed in radians.
What is user defined function.

A user defined function is written and specified by the programmer to accomplish a particular task.
Define SQR function.

Return the square root of a positive number x, x most be greater than or equal to 0.
Define BEEP function.

To sound the speaker an 800 HZ for one quarter of a second.
Define User defined function.

A user defined function is written and specified by the programmer to accomplish a particular task. The function that we write called as user defined functions. Define functions return a single value.
Define Numeric function.

These functions are applicable on numeric values only and produce the numeric result.
Define MID \$ Function.

To return the requested part from of a given string n is on integer expression in the range 1 to 255 m is an integer expression I the range 0 to 255
Define subprogram?

A separate large programs divided into smaller manageable parts called subprogram It is designed to perform a specific task and return a value.
Define INT Function.

Return the lowest integer less than or equal to x. In case of whole number it returns the same number.
Define LEN function.

To return the number of character in string x \$. The x\$ is any string expression. Non printing characters and blanks are counted in the number of character.
Define FIX function.

The purpose of this function is to obtain integer value of simply dropping the decimal part. It does not round the value.
Define log function.

To return a natural logarithm to the base e=2.718282
What is the Purpose of LEN function?

This function is used to return the number of characters in string Non-printing characters and space are counted in the number of characters.
What is ABS Function?

The purpose of ABS function is to return the absolute value of the expression x i.e. the value without any sign.
Define sequential files.

the data contained in a sequential access file is accessed in order in which it is physically stored on the disk.
Define sub routines.

A subroutine is a self – contained set of statement that can be used from anywhere in a program.
Explain the purpose of LEN function with example?

We can calculate number of characters of string means any string expression.
How sequential file is different from random file?

In sequential file the imaginary file position pointer is sequentially moved to each record within the file until the target record searched whereas random file has the capability of accessing a record within a file without the need to access all preceding records.
Define character in file handling.

Character consists of alphabets,digits and special character.
Define random files?

The data contained in a random file is accessed directly with in a particular file when it is physically stored on the disk.
Define built in function and give one example?

These functions perform operations on their operands and return values These are programs that have been written by developers of language nd have been incorporated in it Name is a variable name The Name that comes After FN is become Functions Name and Argument Consists of these variable name in the function is definition that is to be replace when the function is called.
Differentiate between INT and SIN function?

INT function returns the lowest integer less than or equal to x In case of whole number it returns the same number.
Difference between User Defined function and Built in function.

User defined function: The functions that are part of programming language and can be used to perform specific task are called user defined function.
Write down the syntax of DEF FN statement?

Line NO DEF FN argument expression.
Define SIN function?

The purpose of SIN Function is to find the trigonometric ratio called sine of an angle expressed in radians.
Define function.

It takes argument and return the single value.
It is given a unique name and it is called for execution with refers to this name
Return statement is not used in a function.
Define Right Function?

To return the specified right most character of string.
What do you know about FIX function?

The purpose of this function is to obtain an integer value by simple dropping of the decimal part FIX function does not round off the number.
Define data fields in file handling.

Data field are group of related characters to have a unit of information.
Example: The combination of name, father name, his roll no, age is the record of the student.
What is the difference between user defined function and built in function.

The small programs that have been written by the developer of the programming language such as BASIC and are a part of the translator program are called built in functions
A function that is written by a user or a programmer to perform a specific task is called user defined function.

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