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大家好，关于经济学的英文数学题，寻求帮助。。。4/4
5 个回复 - 948 次查看 大家好，关于经济学的英文数学题，寻求帮助。。。谢谢-4/4 怕有些公式显示错误，附加了这道题的截图版，供参考。 3. (FromLecture Note) Let K and P be the stocks of capital and pollution, respectiv ...2018-12-2 09:45 - douligei - 悬赏大厅
5 个回复 - 948 次查看 大家好，关于经济学的英文数学题，寻求帮助。。。谢谢-4/4 怕有些公式显示错误，附加了这道题的截图版，供参考。 3. (FromLecture Note) Let K and P be the stocks of capital and pollution, respectiv ...2018-12-2 09:45 - douligei - 悬赏大厅
关于经济学的英文数学题，寻求帮助。。。3/4
3 个回复 - 739 次查看 大家好，关于经济学的英文数学题，寻求帮助。。。3/4 怕有些公式显示错误，附加了这道题的截图版，供参考。 3. Check the stability and, ifstable, find the steady states in each of the following li ...2018-12-2 09:34 - douligei - 悬赏大厅
3 个回复 - 739 次查看 大家好，关于经济学的英文数学题，寻求帮助。。。3/4 怕有些公式显示错误，附加了这道题的截图版，供参考。 3. Check the stability and, ifstable, find the steady states in each of the following li ...2018-12-2 09:34 - douligei - 悬赏大厅
大家好，关于经济学的英文数学题，寻求帮助。。。2/4
4 个回复 - 833 次查看 大家好，关于经济学的英文数学题，寻求帮助。。。2/4 怕有些公式显示错误，附加了这道题的截图版，供参考。 1. Find the eigenvalues and general solutionsfor the followingsystems of differential equ ...2018-12-2 09:29 - douligei - 悬赏大厅
4 个回复 - 833 次查看 大家好，关于经济学的英文数学题，寻求帮助。。。2/4 怕有些公式显示错误，附加了这道题的截图版，供参考。 1. Find the eigenvalues and general solutionsfor the followingsystems of differential equ ...2018-12-2 09:29 - douligei - 悬赏大厅
关于经济学的英文数学题，寻求帮助。。。1/4
4 个回复 - 1104 次查看 大家好，关于经济学的英文数学题，寻求帮助。。。1/4Python画图代码就不用敲了，告诉我大概的思路或有个效果图就可以了，谢谢。怕有些公式显示错误，附加了这道题的截图版，供参考。 1.Forthe following two ordi ...2018-12-2 09:23 - douligei - 悬赏大厅
4 个回复 - 1104 次查看 大家好，关于经济学的英文数学题，寻求帮助。。。1/4Python画图代码就不用敲了，告诉我大概的思路或有个效果图就可以了，谢谢。怕有些公式显示错误，附加了这道题的截图版，供参考。 1.Forthe following two ordi ...2018-12-2 09:23 - douligei - 悬赏大厅
几道英文数学题，会的帮忙解一下啊。。。 这次分开寻求帮助-3/6
3 个回复 - 943 次查看 Exercise Is (a+b)⋅(a+b)=a⋅a+2(a⋅b)+b⋅b true in general? What if for matrix A and B in general?The Euclidean norm or length of thevector a=(a1,a2,…,an) isNote that ‖αa‖=|α| ...2018-10-12 22:21 - douligei - 悬赏大厅
3 个回复 - 943 次查看 Exercise Is (a+b)⋅(a+b)=a⋅a+2(a⋅b)+b⋅b true in general? What if for matrix A and B in general?The Euclidean norm or length of thevector a=(a1,a2,…,an) isNote that ‖αa‖=|α| ...2018-10-12 22:21 - douligei - 悬赏大厅
几道英文数学题,会的帮忙解一下啊。。。 这次分开寻求帮助-2/6
5 个回复 - 958 次查看 Exercise Show that if a squarematrix A has an inverse, it must be unique.The unique inverse of square matrix A, denotedby A-1, is given by Note carefully the order of the indices in ad ...2018-10-12 22:18 - douligei - 悬赏大厅
5 个回复 - 958 次查看 Exercise Show that if a squarematrix A has an inverse, it must be unique.The unique inverse of square matrix A, denotedby A-1, is given by Note carefully the order of the indices in ad ...2018-10-12 22:18 - douligei - 悬赏大厅
几道英文数学题，会的大侠帮忙解一下啊。。。 这次分开寻求帮助-1/6
5 个回复 - 1000 次查看 Exercise Prove that [*]If A is any m×n matrix, then AIn=A=ImA [*]AIn=InA=A for every n×n matrix A. If A=(aij)m×n is anymatrix, the transpose of A isdefined as A′(or AT) =(aji)n×m. The su ...2018-10-12 22:14 - douligei - 悬赏大厅
5 个回复 - 1000 次查看 Exercise Prove that [*]If A is any m×n matrix, then AIn=A=ImA [*]AIn=InA=A for every n×n matrix A. If A=(aij)m×n is anymatrix, the transpose of A isdefined as A′(or AT) =(aji)n×m. The su ...2018-10-12 22:14 - douligei - 悬赏大厅
几道英文数学题，会的帮忙解一下啊。。。 这次分开寻求帮助-5/6
4 个回复 - 661 次查看 Theorem 6.1 (The Fundamental Theoremof Algebra by Gauss (1779) Consider a polynomial of degree n in z shownbelow.Where ∈ℂ. Then,equation (∗) has n solutions with the property that for e ...2018-10-12 22:30 - douligei - 悬赏大厅
4 个回复 - 661 次查看 Theorem 6.1 (The Fundamental Theoremof Algebra by Gauss (1779) Consider a polynomial of degree n in z shownbelow.Where ∈ℂ. Then,equation (∗) has n solutions with the property that for e ...2018-10-12 22:30 - douligei - 悬赏大厅
几道英文数学题,会的帮忙解一下啊。。。 这次分开寻求帮助-4/6
2 个回复 - 631 次查看 Exercise Showthat if y= (y1, y2, y3) is any linear combination of thevectors in A0, then y3=0Hence A0 fails to span all of ℝ3.The hyperplane in ℝn thatpasses through the point a= (a1,…,an ...2018-10-12 22:25 - douligei - 悬赏大厅
2 个回复 - 631 次查看 Exercise Showthat if y= (y1, y2, y3) is any linear combination of thevectors in A0, then y3=0Hence A0 fails to span all of ℝ3.The hyperplane in ℝn thatpasses through the point a= (a1,…,an ...2018-10-12 22:25 - douligei - 悬赏大厅
几道英文数学题,会的帮忙解一下啊。。。 这次分开寻求帮助-6/6
1 个回复 - 795 次查看 Theorem 6.4 If the matrix A=(aij)n×n is symmetric,then: [*]All the n eigenvalues λ1, . . . , λn are real. [*]Eigenvectors that corresponds to different eigenvalues are orthogonal. [*]Ther ...2018-10-12 22:33 - douligei - 悬赏大厅
1 个回复 - 795 次查看 Theorem 6.4 If the matrix A=(aij)n×n is symmetric,then: [*]All the n eigenvalues λ1, . . . , λn are real. [*]Eigenvectors that corresponds to different eigenvalues are orthogonal. [*]Ther ...2018-10-12 22:33 - douligei - 悬赏大厅
