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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

I need a formulas using only this functions , Mod
IF
and
or
round
roundup
sqrt
min
max
sin
cos
to figure out how many hrs does a take to do a job
Example. 10 to 20k 30 hrs
20001 to 30 k 60 hrs
and so on increments of 10 k increments of 30 hrs

Solved by D. H. in 30 mins