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< 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto">三、代数计算<FONT face="Times New Roman"> </FONT></P>< 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Expand[expr] </FONT>展开表达式<FONT face="Times New Roman"> </FONT></P>< 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Factor[expr] </FONT>展开表达式<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Simplify[expr] </FONT>化简表达式<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> FullSimplify[expr] </FONT>将特殊函数等也进行化简<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> PowerExpand[expr] </FONT>展开所有的幂次形式<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> ComplexExpand[expr,{x1,x2...}] </FONT>按复数实部虚部展开<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> FunctionExpand[expr] </FONT>化简<FONT face="Times New Roman">expr</FONT>中的特殊函数<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Collect[expr, x] </FONT>合并同次项<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Collect[expr, {x1,x2,...}] </FONT>合并<FONT face="Times New Roman">x1,x2,...</FONT>的同次项<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Together[expr] </FONT>通分<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Apart[expr] </FONT>部分分式展开<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Apart[expr, var] </FONT>对<FONT face="Times New Roman">var</FONT>的部分分式展开<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Cancel[expr] </FONT>约分<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> ExpandAll[expr] </FONT>展开表达式<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> ExpandAll[expr, patt] </FONT>展开表达式<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> FactorTerms[poly] </FONT>提出共有的数字因子<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> FactorTerms[poly, x] </FONT>提出与<FONT face="Times New Roman">x</FONT>无关的数字因子<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> FactorTerms[poly, {x1,x2...}] </FONT>提出与<FONT face="Times New Roman">xi</FONT>无关的数字因子<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Coefficient[expr, form] </FONT>多项式<FONT face="Times New Roman">expr</FONT>中<FONT face="Times New Roman">form</FONT>的系数<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Coefficient[expr, form, n] </FONT>多项式<FONT face="Times New Roman">expr</FONT>中<FONT face="Times New Roman">form^n</FONT>的系数<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Exponent[expr, form] </FONT>表达式<FONT face="Times New Roman">expr</FONT>中<FONT face="Times New Roman">form</FONT>的最高指数<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Numerator[expr] </FONT>表达式<FONT face="Times New Roman">expr</FONT>的分子<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> Denominator[expr] </FONT>表达式<FONT face="Times New Roman">expr</FONT>的分母<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> ExpandNumerator[expr] </FONT>展开<FONT face="Times New Roman">expr</FONT>的分子部分<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> ExpandDenominator[expr] </FONT>展开<FONT face="Times New Roman">expr</FONT>的分母部分<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> TrigExpand[expr] </FONT>展开表达式中的三角函数<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> TrigFactor[expr] </FONT>给出表达式中的三角函数因子<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> TrigFactorList[expr] </FONT>给出表达式中的三角函数因子的表<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> TrigReduce[expr] </FONT>对表达式中的三角函数化简<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> TrigToExp[expr] </FONT>三角到指数的转化<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> ExpToTrig[expr] </FONT>指数到三角的转化<FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> RootReduce[expr] </FONT></P><P 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><FONT face="Times New Roman"> ToRadicals[expr]</FONT></P> |
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