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Chip: Special Tips & Tricks for Windows 95
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Chip Wintips.iso
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zeszyt
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winbatch
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problem.wb_
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Text File
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1994-08-31
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2KB
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82 lines
a1= "An unexpected problem can occur when dividing numbers."
a2= "The problem is in deciding between an integer divide "
a3= "(where the remainder, if any, is discarded) and a floating "
a4= "point divide (where a floating point number is returned)."
a5= ""
a6= ""
a7= "Let's assume a test. There are 42 questions."
a8= "A student gets 37 of them correct,"
a9= "what is the student's score."
a10= " "
a11= "iQuestions = 42"
a12= "iCorrect = 37"
a13= "Score = iCorrect / iQuestions"
iQuestions = 42
iCorrect = 37
Score = iCorrect / iQuestions
a14= " "
a15= "The unexpected result is that the score is %Score%"
a16= "Reasonable problem? The trap is that WIL will perform an"
a17= "integer divide and return the unexpected answer of Zero."
a18= " "
a19= "To dig your code out of this trap, simply use floating point"
a20= "numbers when you want a floating point answer."
a21 = " "
a22= "fQuestions = 42.0"
a23= "fCorrect = 37.0"
fQuestions = 42.0
fCorrect = 37.0
Score = fCorrect / fQuestions
a24= "Score = fCorrect / fQuestions"
a25= "The correct score is %Score%"
a26= " "
a27= "Or make the answer look nicer by using the Decimals function"
a28= "and a little formatting."
a29= ""
a30= "Decimals(0)
a31= "Score=Score*100"
Decimals(0)
Score=Score*100
a32= ""
a33= "The correct score is %Score%%%"
text=""
for i=1 to 15
text=strcat(text,a%i%,@crlf)
next
text2=""
for i=16 to 33
text2=strcat(text2,a%i%,@crlf)
next
Message("Integer Divide Problem",text)
Message("Floating point solution",text2)