/sci/ - Science & Math » Thread #12408631

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Engineering bros, how do I do it?

Anonymous Tue 01 Dec 20:24:32 2020 No.12408631 View Reply Original Report

Quoted By: >>12408651 >>12409269

Anyone able to help?

Anonymous

Anonymous Tue 01 Dec 2020 20:25:57 No.12408638 Report

Quoted By: >>12408655 >>12408689

This is science and math, engineers can be found at /toy/.

Anonymous

Anonymous Tue 01 Dec 2020 20:28:39 No.12408651 Report

Quoted By: >>12408757

>>12408631
you must be 18 years or older to post here

Anonymous

Anonymous Tue 01 Dec 2020 20:29:30 No.12408655 Report

Quoted By:

>>12408638
Retard

Anonymous

Anonymous Tue 01 Dec 2020 20:39:46 No.12408689 Report

Quoted By:

>>12408638
lol

Anonymous

Anonymous Tue 01 Dec 2020 21:01:43 No.12408757 Report

Quoted By:

>>12408651
>he doesn’t know the answer

Anonymous

Anonymous Tue 01 Dec 2020 23:15:55 No.12409269 Report

Quoted By: >>12409442

>>12408631
$\delta S &=& \delta \sum_{i=0}^{T-1} {\cal L}(q_i, q_{i+1}) \cr &=& \sum_{i=0}^{T-1} \delta ({1\over 2}m \dot q_i ^2) - \delta V(q_i) \cr &=& \sum_{i=1}^{T-1}((-m(\dot q_i - \dot q_{i-1}) - V^{\prime}(q_i))\delta q_i) \, - (m\dot q_0 + V^{\prime}(q_0))\delta q_0 + m \dot q_{T-1} \delta q_T \cr &=& \sum_{i=1}^{T-1} [-m(\dot q_i - \dot q_{i-1}) - V^{\prime}(q_i)]\delta q_i$

Typical mechanics problem

Anonymous

Anonymous Tue 01 Dec 2020 23:52:59 No.12409442 Report

Quoted By:

>>12409269
Is this from matlab or something?

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