https://www.memcp.org/index.php?action=history&feed=atom&title=Arithmetic_%2F_Logic 2026-04-24T16:52:09Z Revision history for this page on the wiki MediaWiki 1.39.1 https://www.memcp.org/index.php?title=Arithmetic_/_Logic&diff=221&oldid=prev 2025-08-25T16:30:00Z

<p>Created page with &quot;= Arithmetic / Logic = The &#039;&#039;&#039;Arithmetic / Logic&#039;&#039;&#039; module provides essential mathematical operations and logical comparisons for the SCM programming language. This module includes: * &#039;&#039;&#039;Type checking&#039;&#039;&#039;: Functions to verify data types (int?, number?, nil?) * &#039;&#039;&#039;Basic arithmetic&#039;&#039;&#039;: Addition (+), subtraction (-), multiplication (*), and division (/) * &#039;&#039;&#039;Comparison operations&#039;&#039;&#039;: All standard comparison operators (&gt;, &lt;, &gt;=, &lt;=, equal?) * &#039;&#039;&#039;Logical operations&#039;&#039;&#039;: Boole...&quot;</p> <p><b>New page</b></p><div>= Arithmetic / Logic =<br /> <br /> The &#039;&#039;&#039;Arithmetic / Logic&#039;&#039;&#039; module provides essential mathematical operations and logical comparisons for the SCM programming language. This module includes:<br /> <br /> * &#039;&#039;&#039;Type checking&#039;&#039;&#039;: Functions to verify data types (int?, number?, nil?)<br /> * &#039;&#039;&#039;Basic arithmetic&#039;&#039;&#039;: Addition (+), subtraction (-), multiplication (*), and division (/)<br /> * &#039;&#039;&#039;Comparison operations&#039;&#039;&#039;: All standard comparison operators (&gt;, &lt;, &gt;=, &lt;=, equal?)<br /> * &#039;&#039;&#039;Logical operations&#039;&#039;&#039;: Boolean negation (!, not) and advanced equality checks<br /> * &#039;&#039;&#039;Mathematical functions&#039;&#039;&#039;: Min/max operations and rounding functions (floor, ceil, round)<br /> <br /> These functions form the mathematical foundation for calculations and logical decision-making in SCM programs.<br /> <br /> ← Back to [[Full SCM API documentation]]<br /> <br /> == int? ==<br /> <br /> tells if the value is a integer<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == number? ==<br /> <br /> tells if the value is a number<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == + ==<br /> <br /> adds two or more numbers<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–1000<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;number&lt;/code&gt;): values to add<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number&lt;/code&gt;<br /> <br /> == - ==<br /> <br /> subtracts two or more numbers from the first one<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–1000<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;number&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number&lt;/code&gt;<br /> <br /> == * ==<br /> <br /> multiplies two or more numbers<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–1000<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;number&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number&lt;/code&gt;<br /> <br /> == / ==<br /> <br /> divides two or more numbers from the first one<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–1000<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;number&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number&lt;/code&gt;<br /> <br /> == &lt;= ==<br /> <br /> compares two numbers or strings<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–2<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == &lt; ==<br /> <br /> compares two numbers or strings<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–2<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == &gt; ==<br /> <br /> compares two numbers or strings<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–2<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == &gt;= ==<br /> <br /> compares two numbers or strings<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–2<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == equal? ==<br /> <br /> compares two values of the same type, (equal? nil nil) is true<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–2<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == equal?? ==<br /> <br /> performs a SQL compliant sloppy equality check on primitive values (number, int, string, bool. nil), strings are compared case insensitive, (equal? nil nil) is nil<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 2–2<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): values<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == ! ==<br /> <br /> negates the boolean value<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value&#039;&#039;&#039; (&lt;code&gt;bool&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == not ==<br /> <br /> negates the boolean value<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value&#039;&#039;&#039; (&lt;code&gt;bool&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == nil? ==<br /> <br /> returns true if value is nil<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value&#039;&#039;&#039; (&lt;code&gt;any&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;bool&lt;/code&gt;<br /> <br /> == min ==<br /> <br /> returns the smallest value<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1000<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;number|string&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number|string&lt;/code&gt;<br /> <br /> == max ==<br /> <br /> returns the highest value<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1000<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value...&#039;&#039;&#039; (&lt;code&gt;number|string&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number|string&lt;/code&gt;<br /> <br /> == floor ==<br /> <br /> rounds the number down<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value&#039;&#039;&#039; (&lt;code&gt;number&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number&lt;/code&gt;<br /> <br /> == ceil ==<br /> <br /> rounds the number up<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value&#039;&#039;&#039; (&lt;code&gt;number&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number&lt;/code&gt;<br /> <br /> == round ==<br /> <br /> rounds the number<br /> <br /> &#039;&#039;&#039;Allowed number of parameters:&#039;&#039;&#039; 1–1<br /> <br /> &#039;&#039;&#039;Parameters:&#039;&#039;&#039;<br /> * &#039;&#039;&#039;value&#039;&#039;&#039; (&lt;code&gt;number&lt;/code&gt;): value<br /> <br /> &#039;&#039;&#039;Returns:&#039;&#039;&#039; &lt;code&gt;number&lt;/code&gt;</div>

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