From 7bc3b270a664001560df35b37c57ab6c72fe3318 Mon Sep 17 00:00:00 2001
From: pommicket <leonardomtenenbaum@gmail.com>
Date: Sun, 16 Oct 2016 16:25:28 -0400
Subject: Added abs to RPN

---
 complexfunctions.html | 1 +
 js/complex.js         | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/complexfunctions.html b/complexfunctions.html
index dc52a23..d22920c 100644
--- a/complexfunctions.html
+++ b/complexfunctions.html
@@ -97,6 +97,7 @@ Graph complex functions (C->C)
                     <tr><td>pi</td> <td>$\pi = 3.14159265...$</td></tr>
                     <tr><td>e</td> <td>$e = 2.7182818...$</td></tr>
                     <tr><td>sqrt</td> <td>$\sqrt{x}$</td></tr>
+                    <tr><td>abs</td> <td>$|x|$</td></tr>
                     <tr><td>exp</td> <td>$e^x$</td></tr>
                     <tr><td>sin</td> <td>Sine</td></tr>
                     <tr><td>cos</td> <td>Cosine</td></tr>
diff --git a/js/complex.js b/js/complex.js
index a66cbb0..04241f9 100644
--- a/js/complex.js
+++ b/js/complex.js
@@ -264,6 +264,9 @@ complex.rpn = function (s)
             case "im":
                 stack.push(complex.imC(stack.pop()));
                 break;
+            case "abs":
+                stack.push(complex.reToC(complex.abs(stack.pop())));
+                break;
             case "x":
                 stack.push(x);
                 break;
-- 
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