Assume x is a char vector. Which of the following code will convert any lower case letters in x to upper case, without modifying other letters; ie., achieving the same functionality as Matlab's upper() function ? O x('a' <= x <= 'z') = x + 'A' - 'a' O I = 'a' <=x & x<='z'; x(I) = x(I)+('R'-'r') O I = 'a' <=x && x <= 'z'; x(1) = x(1) + 65; O x = char((x - 'a') + 'A') O x = char(mod(x,26) + 'A')

Assume x is a char vector. Which of the following code will convert any lower case letters in x to upper case, without modifying other letters; ie., achieving the same functionality as Matlab's upper() function ? O x('a' <= x <= 'z') = x + 'A' - 'a' O I = 'a' <=x & x<='z'; x(I) = x(I)+('R'-'r') O I = 'a' <=x && x <= 'z'; x(1) = x(1) + 65; O x = char((x - 'a') + 'A') O x = char(mod(x,26) + 'A')

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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