demo_basic_polynomials.htm

来自「Delphi脚本控件」· HTM 代码 · 共 88 行

HTM
88 行
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<html>
<head>
<link rel=stylesheet type="text/css" href="styles.css">
</head>

<body>

<h3>
LISPPA: Polynomials (paxBasic).
</h3>
<hr>

<blockquote>
<pre>
<font color="blue"><b>Sub</b></font> Add(InitP, InitQ)
  <font color="blue"><b>Dim</b></font> P, Q
  P = <font color="blue"><b>AddressOf</b></font> InitP
  Q = <font color="blue"><b>AddressOf</b></font> InitQ
  <font color="blue"><b>Do</b></font>
    <font color="blue"><b>While</b></font> P(0)(1) < Q(0)(1)
      Q = <font color="blue"><b>AddressOf</b></font> Q(1)
    <font color="blue"><b>End</b></font> <font color="blue"><b>While</b></font>

    <font color="blue"><b>If</b></font> P(0)(1) > Q(0)(1) <font color="blue"><b>Then</b></font>
      Q = [ + P[0], Q]
    <font color="blue"><b>Else</b></font>
      Q(0)(0) = Q(0)(0) + P(0)(0)
      <font color="blue"><b>If</b></font> Q(0)(0) = 0 <font color="blue"><b>Then</b></font>
        <font color="blue"><b>Reduced</b></font> Q = Q(1)
      <font color="blue"><b>Else</b></font>
        Q = <font color="blue"><b>AddressOf</b></font> Q(1)
      <font color="blue"><b>End</b></font> <font color="blue"><b>If</b></font>
    <font color="blue"><b>End</b></font> <font color="blue"><b>If</b></font>
    P = <font color="blue"><b>AddressOf</b></font> P(1)
  <font color="blue"><b>Loop</b></font> <font color="blue"><b>Until</b></font> P(0)(1) < 0
<font color="blue"><b>End</b></font> <font color="blue"><b>Sub</b></font>

<font color="blue"><b>Sub</b></font> Show(P)
  <font color="blue"><b>Println</b></font> <font color="Red">""</font>
  <font color="blue"><b>Do</b></font>
    <font color="blue"><b>Print</b></font> P(0)(0), <font color="Red">"X^"</font>, P(0)(1)

    P = <font color="blue"><b>AddressOf</b></font> P(1)

    <font color="blue"><b>If</b></font> P(0)(1) < 0 <font color="blue"><b>Then</b></font>
      <font color="blue"><b>Exit</b></font> <font color="blue"><b>Do</b></font>
    <font color="blue"><b>End</b></font> <font color="blue"><b>If</b></font>

    <font color="blue"><b>If</b></font> P(0)(0) >= 0 <font color="blue"><b>Then</b></font>
      <font color="blue"><b>Print</b></font> <font color="Red">"+"</font>
    <font color="blue"><b>End</b></font> <font color="blue"><b>If</b></font>
  <font color="blue"><b>Loop</b></font> <font color="blue"><b>Until</b></font> false
<font color="blue"><b>End</b></font> <font color="blue"><b>Sub</b></font>

<font color="blue"><b>Dim</b></font> P, Q
P = [[0, -1], <font color="blue"><b>NULL</b></font>]
P(1) = <font color="blue"><b>AddressOf</b></font> P
P = [[600, 1], P]
P = [[10, 2], P]
P = [[70, 5], P]
P = [[150, 6], P]
P = [[80, 7], P]

Q = [[0, -1], <font color="blue"><b>NULL</b></font>]
Q(1) = <font color="blue"><b>AddressOf</b></font> Q
Q = [[600, 1], Q]
Q = [[170, 3], Q]
Q = [[ 60, 5], Q]
Q = [[-150, 6], Q]

<font color="blue"><b>Println</b></font> <font color="Red">"Source polynomials:"</font>
Show(P)
Show(Q)
Add(P, <font color="blue"><b>AddressOf</b></font> Q)
<font color="blue"><b>println</b></font> <font color="Red">"Sum:"</font>
Show(Q)
</pre>
</blockquote>

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