TOPIC: Diff betw weak matrix &functional. difference betw strong matrix & projectized

Please what is the difference between weak matrix and functional organisational structure. Also the difference between strong matrix and projectized organization

Not sure whether you have any specific question. Else, the table 2-1 in PMBOK page 47 answers your question.
Weak matrix/Functional (From the table)--> in Functional PM has no (very very little) control over resources. In Weak Matrix, PM has some control, even if on the lower side. Besides, the Weak matrix there is no coordinator role for PM.
strong matrix & projectized-->please read the table.

Thanks