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Explain difference between Scanning and parsing.
Scanning and parsing: Scanning process is the process of recognizing the lexical components in a source string whereas parsing is the process of checking the validity of a source string, and to find out its syntactic structure. The purpose for separating scanning from parsing is that the lexical characteristics of a language can be specified by using Type-3 grammars. All Type-3 production identifies lexical components is also a Type-2 production. Conversely, a recognizer for Type-3 productions is easier, simple to build and more efficient throughout execution than a recognizer for Type-2 productions. Therefore it is better to handle the lexical and syntactic elements of a source language separately.
An off-hook signal will repeat for a/an duration. For a/an finite duration, an off-hook signal will repeat.
The scope of the experts system is very limited. It cannot work outside the field it is being used. The users knowledge is required to adjust to new situation. To reduce
#write a program to find the area under the curve y=f(x) between x =a and x=b integrate the area between a and b by c programming
When investing money, an important concept to know is compound interest. The equation FV = PV (1+rate)periods . This relates the following four quantities. The present value (PV)
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Write the HTML code to accomplish the web page to insert scrollable lists that will always display four entries of the list. The HTML code to accomplish the web page is given b
Explain about subsystem and object of object oriented modeling A subsystem is a grouping of elements of that constitutes a specification of behaviour offered by other contained
Processor-Memory Interconnection Network (PMIN) This is a switch that joined various processors to different memory modules. Connecting every processor to each memory module in
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