I wrote a software program in BASIC PDS about 35 years ago and want to utilize it for my 64 Bit
computers in my home using QB64.  I am now 74 years old and have trouble remembering so I cannot attempt
to learn another language therefore, would appreciate help with this problem.  Virtual Windows XP
is NOT an option with my Windows 10 computers.  I know that the rest of the software program
works with Windows 10, but the info from the DEF FNname routine makes the use of the software
unusable.

Can anyone help me change the following DEF FNname lines to a FUNCTION in QB64 BASIC formula?

   DEF FNA (Z) = CDBL(INT((SIN((V / Z - INT(V / Z)) * P#) + 1) * 13.5))
   DEF FNG (Z) = 100 * SIN(V / Z * P#)
   DEF FNB = V - 28 * INT(V / 28) + 1
   DEF FNC = V - 23 * INT(V / 23) + 1
   DEF FND = V - 33 * INT(V / 33) + 1

Thanks in advance,
George Lee