.echo file

The .echo file is an OptiStruct input file.

File Creation

Creation of this file is controlled by the I/O Option ECHO = PUNCH.

File Contents

The file represents a copy of the input deck in a form suitable to use for another solution which, when used with the same Subcase Information and I/O Options Entries, should generate identical results (round off error may be noticeable if the original input deck uses large field format).