Computer Science, asked by csangmitra, 3 months ago

9. What are regular expressions ? How are
they useful?

Answers

Answered by itzsecretagent

21

Answer:

ʀᴇɢᴜʟᴀʀ ᴇxᴘʀᴇssɪᴏɴs ᴀʀᴇ ᴀ sʏsᴛᴇᴍ ғᴏʀ ᴍᴀᴛᴄʜɪɴɢ ᴘᴀᴛᴛᴇʀɴs ɪɴ ᴛᴇxᴛ ᴅᴀᴛᴀ, ᴡʜɪᴄʜ ᴀʀᴇ ᴡɪᴅᴇʟʏ ᴜsᴇᴅ ɪɴ ᴜɴɪx sʏsᴛᴇᴍs, ᴀɴᴅ ᴏᴄᴄᴀsɪᴏɴᴀʟʟʏ ᴏɴ ᴘᴇʀsᴏɴᴀʟ ᴄᴏᴍᴘᴜᴛᴇʀs ᴀs ᴡᴇʟʟ. ᴛʜᴇʏ ᴘʀᴏᴠɪᴅᴇ ᴀ ᴠᴇʀʏ ᴘᴏᴡᴇʀғᴜʟ, ʙᴜᴛ ᴀʟsᴏ ʀᴀᴛʜᴇʀ ᴏʙᴛᴜsᴇ, sᴇᴛ ᴏғ ᴛᴏᴏʟs ғᴏʀ ғɪɴᴅɪɴɢ ᴘᴀʀᴛɪᴄᴜʟᴀʀ ᴡᴏʀᴅs ᴏʀ ᴄᴏᴍʙɪɴᴀᴛɪᴏɴs ᴏғ ᴄʜᴀʀᴀᴄᴛᴇʀs ɪɴ sᴛʀɪɴɢs.

Answered by Ᏸυէէєɾϝɭყ

0

Answer:

ʀᴇɢᴜʟᴀʀ ᴇxᴘʀᴇssɪᴏɴs ᴀʀᴇ ᴀ sʏsᴛᴇᴍ ғᴏʀ ᴍᴀᴛᴄʜɪɴɢ ᴘᴀᴛᴛᴇʀɴs ɪɴ ᴛᴇxᴛ ᴅᴀᴛᴀ, ᴡʜɪᴄʜ ᴀʀᴇ ᴡɪᴅᴇʟʏ ᴜsᴇᴅ ɪɴ ᴜɴɪx sʏsᴛᴇᴍs, ᴀɴᴅ ᴏᴄᴄᴀsɪᴏɴᴀʟʟʏ ᴏɴ ᴘᴇʀsᴏɴᴀʟ ᴄᴏᴍᴘᴜᴛᴇʀs ᴀs ᴡᴇʟʟ. ᴛʜᴇʏ ᴘʀᴏᴠɪᴅᴇ ᴀ ᴠᴇʀʏ ᴘᴏᴡᴇʀғᴜʟ, ʙᴜᴛ ᴀʟsᴏ ʀᴀᴛʜᴇʀ ᴏʙᴛᴜsᴇ, sᴇᴛ ᴏғ ᴛᴏᴏʟs ғᴏʀ ғɪɴᴅɪɴɢ ᴘᴀʀᴛɪᴄᴜʟᴀʀ ᴡᴏʀᴅs ᴏʀ ᴄᴏᴍʙɪɴᴀᴛɪᴏɴs ᴏғ ᴄʜᴀʀᴀᴄᴛᴇʀs ɪɴ sᴛʀɪɴɢs.

Previous Question

Next Question

Similar questions

Math, 1 month ago

A manufacturing of TV sets produced 600 sets in 3 rd year and 700 sets in 7 th yera . find 1) production of 1 st year 2) production of 2 nd year 3 ) the total production in first 7 years...

Math, 1 month ago

the sum of the digits of the number 2²⁰⁰⁰ 5²⁰⁰⁴ is...

Geography, 1 month ago

in brics group country from_________ continet is not a member select an appropriate option and complete the following 1] Asia 2] north america 3] africa 4] south america...

English, 3 months ago

Look at the picture and write under/over.

Math, 3 months ago

If the perimeter and the area of a circle are numerically equal then the radius of the circle is: A) 2 UNITS B) π UNITS C) 4 UNITS D) 7 UNITS ...

Physics, 9 months ago

powe 2. (a) What is meant by the label 60 W, 230 V on a bulb and 1 kW, 230 V on an immersion rod ?

Physics, 9 months ago

Establish a relationship to determine the equivalent resistance of a combination of three resistors having resistance R1 R2 and R3 connected in parallel...

Physics, 9 months ago

Differentiate the following. a. Floating and sinking...