Problem understanding set X and Y

[Shun Jie Liu]

Hi GrADs users, there is something I do not understand.
When using set x val <val2> , from reading the documentation, its always converted to world coordinates if grid points are used.
when I tried these command
set x 10 11  
set y 10 11
I end up with 6 outputs in my .dat file using fwrite
Can anyone explain this for me ?
 
Thank you very much
 
- Shunjie
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