<< Click to Display Table of Contents >> Navigation:  Multi-Protocol MasterOPC Server > Lua 5.1 Reference Manual > Examples and Other Useful Things > Data Conversion > Division of a Numerical Value to Digits

Sometimes, when forming requests to a device, it is necessary to divide a number to be sent to digits for next processing (for example, for forming a number in the BCD format from them). The next function is destined to solve such tasks.  

Example of function

function UnpachNumber(Num)

local MasNum={};

repeat

   local Val=Num*0.1;--divide by 10

   Num,Rem=math.modf(Val); --get integer and fractional parts

   local NewRem=math.modf(Rem*10); --multiply the fractional part by 10, and get an integer part of the result

   table.insert(MasNum,NewRem); --write to the table

until Num==0 --exit the cycle if the integer part equals 0

return MasNum;

end;

Example of function invocation

local k={};

k=UnpachNumber(10);

--the table k will contain two elements, the numbers 1 and 0.