Please can someone explain each line alongside each symbol of the expressionPlease please give a detailed explanation for guarded equations explicitly I will upvote it (Adapted and expanded from the book "Programming in Haskell) Define a functionsafetail:: [a] -> [a] that behaves like tail except that it maps [] to [] (insteadof throwing an error). Using tail and isEmpty :: [a] -> Bool, define safetailusing2. guarded equationssafeTailGuard :: [a] -> [a]sageTailGuard1 | isEmpty 1 = []| otherwise = tail l

Consider a function safetail :: [ a ] → [ a ] that behaves as the library function tail, except that…

Answered: 2. guarded equations safeTailGuard…

Engineering

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2. guarded equations safeTailGuard sageTailGuard :: [a] -> [a] 1 | isEmpty 1 = [] | otherwise = tail l

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.

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Please can someone explain each line alongside each symbol of the expression Please please give a detailed explanation for guarded equations explicitly I will upvote it

(Adapted and expanded from the book "Programming in Haskell) Define a function
safetail:: [a] -> [a] that behaves like tail except that it maps [] to [] (instead
of throwing an error). Using tail and isEmpty :: [a] -> Bool, define safetail
using
2. guarded equations
safeTailGuard :: [a] -> [a]
sageTailGuard
1 | isEmpty 1 = []
| otherwise = tail l

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