《超越学科的认知基础》2015张世超学习报告第六周
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Mathematica[1]
学习报告
Mathematica 指令表
| Mathematica 指令表 | |||||||
|---|---|---|---|---|---|---|---|
| 操作 | 指令 | ||||||
| enter i | type esc-ii-esc | ||||||
| enter square root | control -2 | ||||||
| enter "e" | esc-ee-esc | ||||||
| Mutiply the matrix A by the Vector v. | A.v %//MatrixForm | ||||||
| Determinant | Det[A] | ||||||
| Inverse | Inverse[A]//MatrixForm | ||||||
| MatrixPower | [A,2]//MatrixForm or A²//MatrixForm | ||||||
| Transpose | Transpose[A]//MatrixForm | ||||||
| Extract | A1//MatrixForm | ||||||
| Make a 10×10 matrix and automatically populate if with a formula. | M=Table[i*j+sin[i+j},{i,1,10},{j,1,10}];M//MatrixForm | ||||||
| data={1,2,3,4,5} | av2[v_]:=Total[v]/Length[v];av2[data] | ||||||
| Function | Define a function | ||||||
