Formula syntax - correct form

B

BigBob

The formula came out wrong on the previous posting :-

the number 0.19 should appear only below the divisor line situate
underneath log10(200/t2)-0.98 part of the formula, with square bracket
surrounding only the numerator and denominator of this expression. Th
expression 16.88-0.81arctan stands to the left of the first squar
bracket.

BigBo
 
D

Dana DeLouis

Not sure, but see if this is close:
=16.68-0.81*ATAN((LOG10(200/A1)-0.98)/0.19)
 
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