~~NOTOC~~
<=[[4rpl:start| Index]] \\
<= [[4rpl:start#Math]]

====== abs ======
abs(<-var) ->absvar

===== Description =====
Calculates the absolute value of the item and pushes the result on the stack.

===== Examples =====
<code 4rpl>
trace(abs(-1)) #prints '1'
</code>
<=[[4rpl:start| Index]]