[gradsusr] mathematical expression in the grade CTL file

[Namba Takaya]

Dear Sir
Is it possible that we can use the mathematical expression in the grads CTL file?
For example, like
YDEF lat 4096 LINEAR -90 180/4096instead of YDEF lat 4096 LINEAR -90 0.043945
I already tried and I understand that it does not work with the expression above.But if there are any other ways, could you tell me how.
Best Regards,Takaya Namba
  		 	   		  
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