The user-defined functions are defined by a user as per its own requirement and library functions come with compiler.
| Library Function | User Defined Functions |
- LF(library functions) are Predefined functions.
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- UDF(user defined functions) are the function which r created by user as per his own requirements.
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- UDF are part of the program which compile runtime
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- LF are part of header file
(such as MATH.h) which is called runtime.
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- In UDF the name of function id decided by user
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- in LF it is given by developers.
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- in UDF name of function can be changed any time
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- LF Name of function can't be
changed.
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| Example : SIN, COS, Power | Example : fibo, mergeme |
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