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con.focus

Thu Dec 02, 2004 6:15 pm


calculator error

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im making  a calculator  simple though every time when usinmg the divison function and the secound number is 0 is outputs an error        ne  way i can beat the programm to it by tell is to exit the function and output an error message if the secound number is 0 and the function being used is  division  
here's my  code      var inum1,inum2 : real
var ch :char
get inum1
get inum2
get ch 
if ch = '/' then 
put inum1 / inum2
elsif ch = '*' then 
put inum1 * inum2 
elsif ch = '-' then 
put inum1 - inum2 
elsif ch = '+' then 
put inum1 + inum2
end if



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Mazer

Thu Dec 02, 2004 6:21 pm



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Just check to make sure that inum2 isn't equal to 0. If it's zero and they choose '/' then just don't do the operation. Try this in your if statement:

if ch = '/' then 
if inum2 not= 0 then
put inum1 / inum2 
else
put "Can't divide by 0"
end if
%rest of if statement here



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con.focus

Thu Dec 02, 2004 6:36 pm



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thx alot man    i had to change a bit but the right idea   i needed