Merge 99d2c46085 into 4ded7538c1

fix dead link in Numerical Analysis

.gitignore

@@ -0,0 +1 @@
+pdf

README.md

@@ -563,8 +563,8 @@ A curated list of awesome mathematics resources.
 * [Introduction to Numerical Analysis](http://www.math.umd.edu/~dlevy/resources/notes.pdf) - Doron Levy (University of Maryland)
 * [A Concise Introduction to Numerical Analysis](http://www.ima.umn.edu/~arnold/597.00-01/nabook.pdf) - Douglas N. Arnold (University of Minnesota)
 * [Numerical Analysis](http://people.cs.uchicago.edu/~ridg/newna/nalrs.pdf) - L. Ridgway Scott
-* [Lectures In Basic Computational Numerical Analysis](http://www.engr.uky.edu/~acfd/egr537-lctrs.pdf) - J. M. McDonough (University of Kentucky)
-* [Advanced Numerical Methods and Their Applications to Industrial Problems: Adaptive Finite Element Methods](http://www.math.uni-bremen.de/~schmidt/SS04/YSU_Notes.pdf) - Alfred Schmidt, Arsen Narimanyan
+* [Lectures In Basic Computational Numerical Analysis](https://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1000&context=math_textbooks) - J. M. McDonough (University of Kentucky)
+* [Advanced Numerical Methods and Their Applications to Industrial Problems: Adaptive Finite Element Methods](https://user.math.uni-bremen.de/schmi/SS04/YSU_Notes.pdf) - Alfred Schmidt, Arsen Narimanyan
 * [Numerical Analysis for Engineers](https://ece.uwaterloo.ca/~dwharder/nm/) - Douglas Wilhelm Harder
 
 

download-all-pdf.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# --------------------------------- Create the pdf directory if not exists --
+if [ ! -d pdf ]; then
+    mkdir pdf
+fi
+
+# ---------------------------------------- Add pdf directory to .gitignore --
+if [ ! -f .gitignore ]; then
+    echo pdf > .gitignore
+else
+    grep -q -F 'pdf' .gitignore || echo 'pdf' >> .gitignore
+fi
+
+# ---------------------------------------- Download pdf file if not exists --
+for f in `sed -rn 's/.*(http.+\.pdf).*/\1/pg' README.md`
+do
+    if [ ! -f "pdf/${f##*/}" ]; then
+        wget --tries=3 \
+            --timeout=5 \
+            --waitretry=1 \
+            --retry-connrefused \
+            "$f" -P pdf
+    fi
+done