{"id":235716,"date":"2025-06-15T17:10:51","date_gmt":"2025-06-15T17:10:51","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=235716"},"modified":"2025-06-15T17:10:53","modified_gmt":"2025-06-15T17:10:53","slug":"logical-variables-on-time-or-delayed","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/15\/logical-variables-on-time-or-delayed\/","title":{"rendered":"Logical variables: On Time or Delayed"},"content":{"rendered":"\n<p>Logical variables: On Time or Delayed? Complete the function WhatIslt such that: The output logical variable onTime is true only if noTraffic is true and gasEmpty is false. The output logical variable delayed is false only if noTraffic is true and gasEmpty is false. Restriction: Logical expressions must be used. Do not use if statements. Function 1 function [onTime, delayed] = WhatIsIt (noTraffic, gasEmpty) 2 3 onTime = delaeyed = 4 end 5 Code to call your function 1 noTraffic=true; gasEmpty = true; 2 [onTime, delayed]=WhatIsIt (noTraffic, gasEmpty)<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Here is the correct version of the function using only logical expressions, without any <code>if<\/code> statements:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">matlabCopyEdit<code>function [onTime, delayed] = WhatIsIt(noTraffic, gasEmpty)\n    onTime = noTraffic &amp;&amp; ~gasEmpty;\n    delayed = ~(noTraffic &amp;&amp; ~gasEmpty);\nend\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation<\/h3>\n\n\n\n<p>This function evaluates whether a situation results in being &#8220;on time&#8221; or &#8220;delayed&#8221; based on two logical input conditions: <code>noTraffic<\/code> and <code>gasEmpty<\/code>. Each input is a logical variable (true or false).<\/p>\n\n\n\n<p>To determine the output variable <code>onTime<\/code>, the expression must only return <code>true<\/code> if <code>noTraffic<\/code> is <code>true<\/code> and <code>gasEmpty<\/code> is <code>false<\/code>. This is achieved by the logical <code>AND<\/code> operation (<code>&amp;&amp;<\/code>) between <code>noTraffic<\/code> and the negation of <code>gasEmpty<\/code>. The negation is done using the logical <code>NOT<\/code> operator (<code>~<\/code>), which turns <code>true<\/code> into <code>false<\/code> and vice versa. So the condition becomes <code>onTime = noTraffic &amp;&amp; ~gasEmpty;<\/code>. Only under this specific situation will <code>onTime<\/code> be <code>true<\/code>; in all other combinations, it evaluates to <code>false<\/code>.<\/p>\n\n\n\n<p>The second output variable <code>delayed<\/code> is logically the opposite of <code>onTime<\/code>. According to the condition, <code>delayed<\/code> must be <code>false<\/code> <strong>only<\/strong> when <code>noTraffic<\/code> is <code>true<\/code> and <code>gasEmpty<\/code> is <code>false<\/code>, and <code>true<\/code> otherwise. Thus, <code>delayed<\/code> can be defined by simply negating the condition used for <code>onTime<\/code>. This is done using the logical <code>NOT<\/code> operator: <code>delayed = ~(noTraffic &amp;&amp; ~gasEmpty);<\/code>.<\/p>\n\n\n\n<p>This approach ensures that both conditions are computed using pure logical expressions and no conditional branching such as <code>if<\/code> statements, satisfying the problem&#8217;s constraint.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Example Call:<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">matlabCopyEdit<code>noTraffic = true; \ngasEmpty = true;\n[onTime, delayed] = WhatIsIt(noTraffic, gasEmpty)\n<\/code><\/pre>\n\n\n\n<p>Output will be:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">iniCopyEdit<code>onTime = false\ndelayed = true\n<\/code><\/pre>\n\n\n\n<p>This reflects the situation where, although there is no traffic, the gas tank is empty, resulting in a delay.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-639.jpeg\" alt=\"\" class=\"wp-image-235717\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Logical variables: On Time or Delayed? Complete the function WhatIslt such that: The output logical variable onTime is true only if noTraffic is true and gasEmpty is false. The output logical variable delayed is false only if noTraffic is true and gasEmpty is false. Restriction: Logical expressions must be used. Do not use if statements. 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