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x= a*cos(Kx *t)
y=b*sin (Ky *t) parametic equation

Solved by E. H. in 18 mins

Hello I am trying to convert a written formula into Excel but not having much joy! Please see below, is there anything obvious that I am missing?
=(F$2/sq(F$3^2+10^4*pi^2*F$4^2))*sin(100*pi*A2-tan^-1(100*pi*F$4/F$3))
Your help would be greatly received :)

Solved by O. S. in 28 mins

how do i use pi functions in developer tab?

Solved by A. S. in 12 mins

i cant calculate sin(20*pi*0) 0-80 i need some assistants

Solved by A. F. in 20 mins

=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