Official doc does not include *naryExpr dox, also is missing (all) equation pictures

Functions *naryExpr are not included in the current (3.3, didn't check for devel) official documentation. They were present in the 3.2 version doc, e.g. http://eigen.tuxfamily.org/dox-3.2/classEigen_1_1ArrayBase.html#a6852cd0e197cd1c452148919c527efbb . Currently the only related info from the official doc that I found is a few lines on unaryExpr on http://eigen.tuxfamily.org/dox/group__QuickRefPage.html . Having no detailed but only quick ref is confusing.

In addition, all equations that I've encountered are not correctly displayed but the alt-text is in place.