update

1 files changed, 9 insertions, 0 deletions

diff --git a/eigen/doc/examples/Cwise_erf.cpp b/eigen/doc/examples/Cwise_erf.cpp
new file mode 100644
index 0000000..e7cd2c1
--- /dev/null
+++ b/eigen/doc/examples/Cwise_erf.cpp
@@ -0,0 +1,9 @@
+#include <Eigen/Core>
+#include <unsupported/Eigen/SpecialFunctions>
+#include <iostream>
+using namespace Eigen;
+int main()
+{
+  Array4d v(-0.5,2,0,-7);
+  std::cout << v.erf() << std::endl;
+}