diff --git a/doc/QuickStartGuide.dox b/doc/QuickStartGuide.dox index c48e153cf..25bbf4632 100644 --- a/doc/QuickStartGuide.dox +++ b/doc/QuickStartGuide.dox @@ -188,6 +188,15 @@ v = 6 6 6 +\subsection TutorialCasting Casting + +In Eigen, any matrices of same size and same scalar type are all naturally compatible. The scalar type can be explicitely casted to another one using the template cast() function: +\code +Matrix3d md(1,2,3); +Matrix3f mf = md.cast(); +\endcode +Note that casting to the same scalar type in an expression is free. + \subsection TutorialMap Map Any memory buffer can be mapped as an Eigen expression: