aboutsummaryrefslogtreecommitdiffhomepage
path: root/doc/snippets
diff options
context:
space:
mode:
authorGravatar Gael Guennebaud <g.gael@free.fr>2010-06-28 13:30:10 +0200
committerGravatar Gael Guennebaud <g.gael@free.fr>2010-06-28 13:30:10 +0200
commitdbefd7aafbe1f245ac9edc3c88444a19ef2d7367 (patch)
tree6a999f898458f1d2a961260517dfc016d35fcd80 /doc/snippets
parent768bdd08c86bbdb7d577859bdf11687a6f57bbc3 (diff)
* update redux section
* fix output precision to 3 for the snippets
Diffstat (limited to 'doc/snippets')
-rw-r--r--doc/snippets/compile_snippet.cpp.in1
-rw-r--r--doc/snippets/tut_arithmetic_redux_minmax.cpp10
-rw-r--r--doc/snippets/tut_arithmetic_transpose_aliasing.cpp5
-rw-r--r--doc/snippets/tut_arithmetic_transpose_inplace.cpp2
4 files changed, 16 insertions, 2 deletions
diff --git a/doc/snippets/compile_snippet.cpp.in b/doc/snippets/compile_snippet.cpp.in
index 5cfcbfe38..561d5f685 100644
--- a/doc/snippets/compile_snippet.cpp.in
+++ b/doc/snippets/compile_snippet.cpp.in
@@ -11,6 +11,7 @@ using namespace std;
int main(int, char**)
{
+ cout.precision(3);
${snippet_source_code}
return 0;
}
diff --git a/doc/snippets/tut_arithmetic_redux_minmax.cpp b/doc/snippets/tut_arithmetic_redux_minmax.cpp
new file mode 100644
index 000000000..b7b71b077
--- /dev/null
+++ b/doc/snippets/tut_arithmetic_redux_minmax.cpp
@@ -0,0 +1,10 @@
+ Matrix3f m = Matrix3f::Random();
+ std::ptrdiff_t i, j;
+ float minOfM = m.minCoeff(&i,&j);
+ cout << "Here is the matrix m:\n" << m << endl;
+ cout << "Its minimum coefficient (" << minOfM << ") is at position (" << i << "," << j << ")\n\n";
+
+ RowVector4i v = RowVector4i::Random();
+ int maxOfV = v.maxCoeff(&i);
+ cout << "Here is the vector v: " << v << endl;
+ cout << "Its maximum coefficient (" << maxOfV << ") is at position " << i << endl; \ No newline at end of file
diff --git a/doc/snippets/tut_arithmetic_transpose_aliasing.cpp b/doc/snippets/tut_arithmetic_transpose_aliasing.cpp
index dec2634a2..c8e4746d0 100644
--- a/doc/snippets/tut_arithmetic_transpose_aliasing.cpp
+++ b/doc/snippets/tut_arithmetic_transpose_aliasing.cpp
@@ -1,4 +1,5 @@
Matrix2i a; a << 1, 2, 3, 4;
cout << "Here is the matrix a:\n" << a << endl;
-a = a.transpose(); // fails
-cout << "and the aliasing effect:\n" << a << endl; \ No newline at end of file
+
+a = a.transpose(); // !!! do NOT do this !!!
+cout << "and the result of the aliasing effect:\n" << a << endl; \ No newline at end of file
diff --git a/doc/snippets/tut_arithmetic_transpose_inplace.cpp b/doc/snippets/tut_arithmetic_transpose_inplace.cpp
index c46bd5b1a..7a069ff23 100644
--- a/doc/snippets/tut_arithmetic_transpose_inplace.cpp
+++ b/doc/snippets/tut_arithmetic_transpose_inplace.cpp
@@ -1,4 +1,6 @@
MatrixXf a(2,3); a << 1, 2, 3, 4, 5, 6;
cout << "Here is the initial matrix a:\n" << a << endl;
+
+
a.transposeInPlace();
cout << "and after being transposed:\n" << a << endl; \ No newline at end of file