add fromArray() and wrapArray().

For example, the following now works:

  double a1[3] = {1.0, 3.0, 2.0}, a2[3];
  Vector3d::wrapArray(a2) = 2 * Vector3d::fromArray(a1);
  cout << Vector3d::fromArray(a2) << endl; // output: 2,6,4

1 files changed, 5 insertions, 0 deletions

diff --git a/doc/tutorial.cpp b/doc/tutorial.cpp
index 4400bd2d1..8a7d499d3 100644
--- a/doc/tutorial.cpp
+++ b/doc/tutorial.cpp
@@ -32,5 +32,10 @@ int main(int, char **)
   cout << "Column 1 of m2 is:" << endl << m2.col(1) << endl;
   cout << "The transpose of m2 is:" << endl << m2.transpose() << endl;
   cout << "The matrix m2 with row 0 and column 1 removed is:" << endl << m2.minor(0,1) << endl;
+  
+  double a1[3] = {1.0, 3.0, 2.0};
+  double a2[3];
+  Vector3d::wrapArray(a2) = 2 * Vector3d::fromArray(a1);
+  cout << Vector3d::fromArray(a2) << endl;
   return 0;
 }