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The World of Computer Software
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World_Of_Computer_Software-02-385-Vol-1of3.iso
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mcademo3.zip
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ROOT.PAS
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ROOT.PAS
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Pascal/Delphi Source File
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1991-06-12
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1KB
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81 lines
.TXT 0 0 0 0
C a111,584,38
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Helv;}
}
{\f0 \fs20 \b \i0 \ul0 ROOT FUNCTION}
}
.TXT 2 2 0 0
C a253,568,60
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Helv;}
}
Suppose you want to find zeroes of\par the
following function:
}
.EQN 5 3 0 0
f(x):(x)^(3)-3*x+1
.TXT 3 -3 0 0
C a91,568,19
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Helv;}
}
Start with a plot:
}
.EQN 0 16 0 0
x:-2,-1.9;2
.EQN 1 -16 0 0
3&-3&f(x)@2&-2&x
0 1 0 1 0
0 1 0 1 0
0 1 0 0 NO-TRACE-STRING
0 2 1 0 NO-TRACE-STRING
0 3 2 0 NO-TRACE-STRING
0 4 3 0 NO-TRACE-STRING
0 1 4 0 NO-TRACE-STRING
0 2 5 0 NO-TRACE-STRING
0 3 6 0 NO-TRACE-STRING
0 4 0 0 NO-TRACE-STRING
0 1 1 0 NO-TRACE-STRING
0 2 2 0 NO-TRACE-STRING
0 3 3 0 NO-TRACE-STRING
0 4 4 0 NO-TRACE-STRING
0 1 5 0 NO-TRACE-STRING
0 2 6 0 NO-TRACE-STRING
0 3 0 0 NO-TRACE-STRING
0 4 1 0 NO-TRACE-STRING
0 1 21 9
.TXT 15 -1 0 0
C a138,568,26
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Helv;}
}
[Scroll to see solutions]
}
.TXT 4 2 0 0
C a265,560,69
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Helv;}
}
Now, with three different guesses, we\par
can find the three solutions.
}
.EQN 5 0 0 0
x:-2
.EQN 0 7 0 0
root(f(x),x)={18998}?
.EQN 3 -7 0 0
x:0
.EQN 0 7 0 0
root(f(x),x)={18998}?
.EQN 3 -7 0 0
x:2
.EQN 0 7 0 0
root(f(x),x)={18998}?