From: toy.raymond@gmail.com   
      
   >>>>> "Miros" == Miros   writes:   
      
       Miros> Martin  wrote:   
       >> If I run the following code:   
       >>   
       >> for i: 1 step 1 thru 25 do block   
       >> (b : float((1+sqrt(1+2*(i^2-i)))/2),   
       >> if b > floor(b)  then print(i,b) );   
       >>   
       >> then Maxima will correctly print values of i and b up to i = 25   
   excluding i   
       >> = 1,4 and 21 where b evaluates to an integer. However if I run:   
       >>   
       >> for i: 1 step 1 thru 25 do block   
       >> (b : float((1+sqrt(1+2*(i^2-i)))/2),   
       >> if b = floor(b)  then print(i,b) );   
       >>   
       >> then nothing is printed where I should now get the values that were   
   omitted   
       >> above.   
      
       Miros> Because in maxima 0=0.0 is false, you should replace  b = floor(b)   
   with   
       Miros> b-floor(b) = 0.0   
      
   No. "=" is syntactic equality. You want is(equal(b,floor(b))).   
      
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   Ray   
      
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