Differences

This shows you the differences between two versions of the page.

--- at:tutorial:basic [2020/02/09 19:39] – elisag
+++ at:tutorial:basic [2020/02/09 21:35] – elisag
@@ Line 85: / Line 85: @@
 >>[2, 3, 4]
 </code>
@@ Line 108: / Line 110: @@
 >a
 >>[[1, 3, 0], [0, 1, 0], [0, 0, 1]]
 </code>
@@ Line 120: / Line 121: @@
 </code>
-Finally, we can create a function for nXn tables as follows:
+Finally, we can define a helper function to create matrices as follows:
 <code>
-def makeMatrix(n) { def col[n] {0}; def m[n] { [@col]}};
+def makeMatrix(n, m := n, init := { |i,j| 0}){
+  def [i,j] := [0,0];
+  def makeCol(i,j) {
+     def col[m] { j := j + 1; init(n,m) }
+  };
+  def matrix[n] { i := i + 1; makeCol(i,j)}
+};
 def c := makeMatrix(3);
 >>[[0, 0, 0], [0, 0, 0], [0, 0, 0]]