📄 第一节 mathematica快速入门.htm
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style="text-indent: 17.95pt; line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font size="4" face="楷体_GB2312"> </font> </SPAN><font size="4" face="楷体_GB2312">Quotient[n,m]<SPAN
style="mso-spacerun: yes">
</SPAN>n/m的整数部分<O:P> </O:P></font></b></SPAN></P>
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style="text-indent: 17.95pt; line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font size="4" face="楷体_GB2312"> </font> </SPAN><font size="4" face="楷体_GB2312">Mod[n,m]<SPAN
style="mso-spacerun: yes">
</SPAN>n/m的余数<O:P> </O:P></font></b></SPAN></P>
<P align=left class=MsoNormal
style="text-indent: 17.95pt; line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font size="4" face="楷体_GB2312"> </font> </SPAN><font size="4" face="楷体_GB2312">Random[]<SPAN
style="mso-spacerun: yes">
</SPAN>0,1间随机数<O:P> </O:P></font></b></SPAN></P>
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style="text-indent: 17.95pt; line-height: 200%; margin-left: 12.05pt"><SPAN
lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><font size="4" face="楷体_GB2312">Max[x,y,...]，Min[x,y,...]<SPAN
style="mso-spacerun: yes"> </SPAN>最大数和最小数<O:P> </O:P></font></b></SPAN></P>
<P align=left class=MsoNormal
style="text-indent: 17.95pt; line-height: 200%; margin-left: 12.05pt"><SPAN
lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><font size="4" face="楷体_GB2312">Sin[x],
Cos[x], Tan[x],Cot[x], Sec[x],Csc[x],ArcSin[x],ArcCos[x],ArcTan[x],
ArcCot[x],ArcSec[x] ArcCsc[x]三角函数<O:P> </font></b></SPAN></P>
<P align=left class=MsoNormal
style="text-indent: 17.95pt; line-height: 200%; margin-left: 12.05pt"><span style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt" lang="EN-US"><b style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><font size="4" face="楷体_GB2312">Sinh<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>Cosh<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>Tanh<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>Coth<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>Sech<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>Csch
ArcSinh<span style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>ArcCosh<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>ArcTanh<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>ArcCoth<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>ArcSech<span style="font-family: 宋体; mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">
</span>ArcCsch </font></b><font size="4" face="楷体_GB2312"><b style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt">双曲函数</b></font></span></P>
<p class="MsoNormal" style="text-indent:21.0pt"><b><font face="宋体" size="4" color="#FF0000">对上述函数的函数名的书写有一些统一的规定：</font></b></p>
<p class="MsoNormal" style="margin-left:36.75pt;text-indent:-15.75pt;mso-list:
l15 level1 lfo10;tab-stops:list 36.75pt"><span lang="EN-US"><b><font size="4"><font face="宋体">(1)</font></font></b></span><font face="宋体"><b><font size="4"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman""><font color="#FF0000">首字母必须大写</font>，如果函数名由几段组成，则每一段的首字母也必须大写，如：</span><span lang="EN-US">ArcSin</span><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">等。</span></font></b></font></p>
<p class="MsoNormal" style="margin-left:36.75pt;text-indent:-15.75pt;mso-list:
l15 level1 lfo10;tab-stops:list 36.75pt"><span lang="EN-US"><b><font size="4"><font face="宋体">(2)</font></font></b></span><font face="宋体"><b><font size="4"><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman"><font color="#FF0000">函数名字是一个字符串，中间不能有空格</font>。</span></font></b></font></p>
<p class="MsoNormal" style="margin-left:36.75pt;text-indent:-15.75pt;mso-list:
l15 level1 lfo10;tab-stops:list 36.75pt"><span lang="EN-US"><b><font size="4"><font face="宋体">(3)</font></font></b></span><font face="宋体"><b><font size="4"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman""><font color="#FF0000">函数的参数用方括号括起来</font>，不能用圆括号。这是为了避免歧义性。实际上，在一般数学里括号的使用是有歧义的如：我们认为</span><span lang="EN-US">a(x+y)</span><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">表示</span><span lang="EN-US">a</span><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">乘以</span><span lang="EN-US">x+y</span><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">，而</span><span lang="EN-US">sin(x+y)</span><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">表示函数</span><span lang="EN-US">sin</span><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">作用到表达式</span><span lang="EN-US">x+y</span><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">上，那么</span><span lang="EN-US">f(x+y)</span><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">表示什么呢？</span></font></b></font></p>
<p class="MsoNormal" style="margin-left:36.75pt;text-indent:-15.75pt;mso-list:
l15 level1 lfo10;tab-stops:list 36.75pt"><span lang="EN-US"><b><font size="4"><font face="宋体">(4)</font></font></b></span><font face="宋体"><b><font size="4"><span style="mso-ascii-font-family: Times New Roman; mso-hansi-font-family: Times New Roman">有多个参数的函数，参数间用逗号隔开，如：</span></font></b></font></p>
<p class="MsoNormal" style="margin-left:36.75pt"><span lang="EN-US"><b><font face="宋体" size="4">Log[2,3.256]</font></b></span></p>
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style="text-indent: 17.95pt; line-height: 200%; margin-left: 12.05pt"><SPAN
lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"> <b><font size="4" face="楷体_GB2312"> </O:P></font></b></SPAN></P>
<P align=left class=MsoNormal style="line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><font size="4" face="楷体_GB2312"><font color="#FF0000">3.
常数<O:P> </font> </O:P></font></b></SPAN></P>
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style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font size="4" face="楷体_GB2312"> </font> </SPAN><font size="4" face="楷体_GB2312">Pi<SPAN
style="mso-spacerun: yes">
</SPAN>Pi=3.141592653589793...<O:P> </O:P></font></b></SPAN></P>
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style="text-indent: 17.95pt; line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font size="4" face="楷体_GB2312"> </font> </SPAN><font size="4" face="楷体_GB2312">E<SPAN
style="mso-spacerun: yes">
</SPAN>e=2.71828...<O:P> </O:P></font></b></SPAN></P>
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style="text-indent: 17.95pt; line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font size="4" face="楷体_GB2312"> </font> </SPAN><font size="4" face="楷体_GB2312">Degree<SPAN
style="mso-spacerun: yes">
</SPAN>Pi/180<O:P> </O:P></font></b></SPAN></P>
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style="text-indent: 17.95pt; line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font size="4" face="楷体_GB2312"> </font> </SPAN><font size="4" face="楷体_GB2312">I<SPAN
style="mso-spacerun: yes">
</SPAN>i=Sqrt[-1]<O:P> </O:P></font></b></SPAN></P>
<P align=left class=MsoNormal
style="text-indent: 17.95pt; line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font size="4" face="楷体_GB2312"> </font> </SPAN><font size="4" face="楷体_GB2312">Infinity<SPAN
style="mso-spacerun: yes"> </SPAN></font><SPAN
style="mso-spacerun: yes"><font size="4" face="宋体"> </font></SPAN><font size="4" face="宋体">无穷大<O:P> </O:P></font></b></SPAN></P>
<P align=left class=MsoNormal
style="text-indent: 17.95pt; line-height: 200%"><SPAN lang=EN-US
style="mso-hansi-font-family: Times New Roman; mso-font-kerning: 0pt"><b><SPAN
style="mso-spacerun: yes"><font face="宋体"><font size="4"> </font> </font> </SPAN><font size="4" face="宋体">DirectedInfinity<SPAN
style="mso-spacerun: yes"> </SPAN>有向的无穷<O:P>
</O:P></font></b></SPAN></P>
<P align=left class=MsoNormal style="line-height: 200%"><b><font size="4" face="宋体">例:求表达式<IMG src="images/1.htm2.gif" width="149" height="45">
的值<O:P> </font><font size="4" face="楷体_GB2312"> </O:P></font></b></P>
<P class=MsoNormal style="text-indent: 20.5pt; line-height: 200%"><SPAN lang=EN-US
style="mso-bidi-font-size: 10.0pt"><b><font size="4" face="楷体_GB2312">In[1]:=-3^2*((4/7 + 2)*5 -
8)^(1/4)<O:P> </O:P></font></b></SPAN></P>
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style="text-indent: 17.95pt; line-height: 200%"><b><SPAN lang=EN-US><font size="4" face="楷体_GB2312">Out[1]=<SPAN style="mso-text-raise: -12.0pt"><!--[if gte vml 1]><V:SHAPE id=_x0000_i1027
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v:shapes="_x0000_i1027" width="69" height="41"></SPAN><!--[if gte mso 9]><xml>
<o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1027"
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</font>
</SPAN><font size="4" face="楷体_GB2312"><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></font></b></P>
<P align=left class=MsoNormal
style="text-indent: 17.95pt; line-height: 200%"><b><SPAN lang=EN-US
style="mso-font-kerning: 0pt"><font size="4" face="楷体_GB2312">In[2]:=</font></SPAN><font size="4" face="楷体_GB2312"><SPAN lang=EN-US
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