最基本的数学运算
输入数学计算式子,按下(shift+enter)得出计算结果。
Enter the mathematical calculation formula and press (shift+enter) to get the calculation result.
首先输入需要求导的函数,然后引入求导函数,D函数(注意D要大写),最后shift+enter,得出结论。
First enter the function that needs to be derived, then introduce the derivative function, D function (note that D should be capitalized), and finally shift+enter to draw a conclusion.
变量与变量替换
变量名:以英文字母开头(建议小写),后跟字母或者数字,字符长度不变。
Mathematica区分字母大小写,A与a表示不同的变量。
Variable name: Start with an English letter (lowercase is recommended), followed by letters or numbers, and the character length remains unchanged.
Mathematica distinguishes between uppercase and lowercase letters, and A and a indicate different variables.
变量的值的清除
.:清除a的值
Clear:清除整个b的家族(b1,b2....等)
Clear the value of the variable
.: Clear the value of a
Clear: Clear the entire b family (b1, b2... etc.)
四种括号的使用
方括号Square brackets
花括号curly braces
双方括号Double brackets
圆括号Parentheses
括号的使用举例
多项式运算
基本运算(可以看到乘法和除法并不会运算,而只是表示出来)
Basic operations (you can see that multiplication and division do not operate, but just show it)
两个多项式相除的处理
How to divide two polynomials
多项式元素提取
Polynomial element extraction
多项式的展开与合并
Polynomial expansion and merging
多项式分解
Polynomial decomposition
常见问题
模型计算练习
参考资料:谷歌翻译
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