Name
readb —  fortran file binary read
Calling Sequence
x=readb(file-name,m,n [,rec])
Parameters
- file-name
- string or integer 
- m, n
- integers (dimensions of the matrix x). Set m=-1 if you do not know the numbers of rows, so all the file is read 
- rec
- vector of positive integers. the selected records for direct access. This vector size must be equal to the number of rows of desired - x.
 
Description
    binary read of the matrix x in the file file-name.
    Matrix entries are supposed to have been stored on 8 byte words.
    For direct record access, file must have been previously opened using
    file function to set the record_length. file-name must be
    the result of the file function.