Assignment 2: Sub-functions and Function HandlesThe aim of this assignment is explore how sub-functions can be made available from afunction file, via functional handles. The aim is to implement a simple stack in a file(mystack.m), where the main function passes back the three stack manipulationfunctions. A stack is a "last in first out" queue. The function file does not maintain anystack state, therefore the stack itself is passed in to functions, and then, when it's modified,the stack is returned.The file mystack.m contains the following functions:FunctionFunctionInputsOutputsDescriptionNameТуреMain functionmystackNonepushMain function that returns 3for the file.handles to the stack functionsрoppeekmystack_push Sub-functionstackstackPushes value onto the stackvalue(location 1)mystack_popSub-functionstackPops value off the stack (i.e.value in array location 1).Should return an empty stack ifthere is only one elementstackReturns the top value from thestack (array location 1). If thestack is empty, it should notthrow an error.mystack peekSub-functionstackvalue The code below shows a test case. The first call sets up the three stack functions so thatthey can be called. The variable stack is an array variable that holds the data. It is passedinto functions, and also its modified value returned (from two of the functions).Implement a script that contains the following test code.[push, pop, peek] = mystack();stack = [ ]stack = push(stack, 100)>> stack = 100stack = push(stack, 200)>> stack = 200100peek (stack)>> ans = 200stack = pop(stack)>> stack = 100peek (stack)>> ans = 100

ction file, via functional handles. The aim is to implemen ystack.m), where the main function passes back the tl ctions. A stack is a "last in first out" queue. The function fi ck state, therefore the stack itself is passed in to functions, and stack is returned. e file mystack.m contains the following functions: anction ame Function Inputs Outputs Desc Туре

ction file, via functional handles. The aim is to implemen ystack.m), where the main function passes back the tl ctions. A stack is a "last in first out" queue. The function fi ck state, therefore the stack itself is passed in to functions, and stack is returned. e file mystack.m contains the following functions: anction ame Function Inputs Outputs Desc Туре

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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