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=ATAN((COSB2*PI()/180)/(TANA3*PI()/180)) Can you tell me why this formulae that I have put into XL is showing the result #NAME? I want to calculate the value of inverse tan of the cosine of cell B2 divided by the Tan of cell A3. I need the answer in degrees not radians. I have a range of cells that I need to do this operation on Can you spot the syntax error I am making? Cheers, John
Solved by K. Y. in 29 mins
Im trying to write an equation along the lines tan^-1[((18-12.75)/8.75)-tan(51.534) and the answer should be 33.373 degrees im not sure what the issue is?
Solved by C. A. in 12 mins
I need to delete additive inverse of numbers in a huge data file.!
Solved by K. Q. in 26 mins
I need help writing a formula which is basically the inverse of another formula.
Solved by G. F. in 21 mins
I need to know the formula/symbol for tan-1
Solved by X. A. in 27 mins