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EugeneKalentev

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9 years, 234 days
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These are replies submitted by EugeneKalentev

Just answer...

EugeneKalentev 85
September 14 2015
0 0

@tomleslie Hello. It was just an answer to a simple question of how to solve the problem using the 2-D input. I did not compare the efficiency, conciseness, and the like, the different input methods. I think everyone decides which input method the expressions he used.

 

2-D...

EugeneKalentev 85
September 13 2015
0 0

@tomleslie Perhaps this is what you need

 

eq := m*(diff(x(t), t, t)) = -k*x(t)-b*(diff(x(t), t))

m*(diff(diff(x(t), t), t)) = -k*x(t)-b*(diff(x(t), t))

 (1)

dsolve(eq, x(t))

x(t) = _C1*exp((1/2)*(-b+(b^2-4*k*m)^(1/2))*t/m)+_C2*exp(-(1/2)*(b+(b^2-4*k*m)^(1/2))*t/m)

 (2)

``


Download Answer_2-D.mw

Working...

EugeneKalentev 85
September 03 2015
0 0

@Markiyan Hirnyk Thank you

Use Ctl-Shift-_...

EugeneKalentev 85
August 27 2015
0 0

@acer

Thank you. Really works. 

Still does not work...

EugeneKalentev 85
August 27 2015
0 0

@Kitonum Thanks for your reply.I score as you recommend and still not working. You can attach your file?

 

Supplement may be you have changed something in the definition of expression in the sequence u, and after your corrections still not working.

Thank you for your file. You replaced x__1 on x[1].
I still do not understand why can not use subscript notation. Like here

http://www.maplesoft.com/support/help/Maple/view.aspx?path=MaplePortal/Tutorial6

Hi Edgardo S. Cheb-Terrab.Could you...

EugeneKalentev 85
March 23 2015
0 0

Hi Edgardo S. Cheb-Terrab.

Could you please send me the missing file (Download DivergenceOfATenso.mw) in this thread http://www.mapleprimes.com/questions/35714-Tensor-Vs-Vector-Operations

Tensors...

EugeneKalentev 85
March 05 2015
0 0

Hi Edgardo S. Cheb-Terrab. Thanks for your help. Try to understand.

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