Question: If the s=0.26,what can I do to get the result of the expression?

> R := 0.6e-1*(arctan(10*s/1.3+(-10)*.3)/Pi+1/2) / /10 s \ \ |arctan|---- + (-10) 0.3| | | \1.3 / 1| s -> 0.06 |------------------------ + -| \ Pi 2/ > y := -R(s)*cos(6*Pi*s/1.3) > y(0.26); ???what can I do to get the result of y,when s=0.026 Need help from anyone! Thank you! liu
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