2. The word algorithm came from the
name of a Persian author,”
Abu Ja Far Muhammad bin Musa al Khwarizmi ”
3. Algorithm refers to a method
that can be used by a computer
for the solution of a problem.
4. What is an Algorithm ?
An Algorithm is a finite set of
instructions that , if followed ,
accomplishes a particular task.
5. Conditions that an Algorithm must satisfy:
Input
Output
Definiteness
Finiteness
Effectiveness
6. Input:
Zero or more quantities are externally supplied.
Out put:
At least one quantity should be produced.
Definiteness:
Each instruction is clear and unambiguous.
7. Finiteness:
If we trace out the instructions of an algorithm, then
for all cases the algorithm must terminate after a finite
number of steps.
Effectiveness:
Every instruction must be very basic, so that it can be
carried out by a person using only pencil and paper.
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