pik1432

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These are questions asked by pik1432

Hello there, 

Would please tell me how to pick up numerical vaules from answers given by 'solve()' command?

If you look at the worksheet (sorry for the error), one possible way is labeled by 'solution 1'. However, when I tried the expression in the 'attempt 1' label, I got an error. Therefore, I'm wondering if there is a way to extract the values from the answers, instead of using the 'rhs()' command. 


Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/q20210206.mw .
 

Download q20210206.mw

 

Best Regards, 

In Kwon Park

Hello all, 

When I enter the following expression:

eqaux_2 := l__bb = L__aa0 + L__aa2 * cos(2*theta - 4/3*Pi);
 

the cos function got converted an equivalent sin function automatically and the result was displayed like this:

l__bb = L__aa0 - L__aa2*sin(2*theta + Pi/6)

Is there any way to ask Maple not to do this automatic conversion?



Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/q20210204.mw .
 

Download q20210204.mw
 

 

Hello there, 

The equations described below are third-order equations. Therefore, the number of solutions would be 3. 

However, when I tried to solve them using the 'solve' command, only two solutions came out. 

Is there any chance to find the last one?



Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/Q20210201.mw .
 

Download Q20210201.mw

Hello there, 

When I tried to solve an equation using the 'solve' command in Maple, I got an answer. 

However, I could not understand how Maple got to the answer. Would you tell me what steps Maple might have gone through in order to come to the answer?

Here is my worksheet:

q20210130.mw

Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/q20210130.mw .
 

Download q20210130.mw

PS) Perhaps this editbox began to dislike Google Chrome.

 

 

Hello there, 

When I tried to use 'solve' command to solve an algebraic matrix equation, I got this error:

Would you please tell me the correct way to solve it?

eq6_3_sol := T__PhPh = solve(eq6_3_1, T__PhPh);
Error, invalid input: solve expects its 1st argument, eqs, to be of type {`and`, `not`, `or`, algebraic, relation(algebraic), ({list, set})({`and`, `not`, `or`, algebraic, relation(algebraic)})}, but received (Vector(3, {(1) = cos(omega__o*t), (2) = -cos(omega__o*t+(1/3)*Pi), (3) = -sin(omega__o*t+(1/6)*Pi)})) = T__PhPh . (Vector(3, {(1) = cos(omega__i*t), (2) = -cos(omega__i*t+(1/3)*Pi), (3) = -sin(omega__i*t+(1/6)*Pi)}))
 

The matrix equation I tried to solve is presented below:

(sorry for the duplication below, perhaps the Maple app which is supposed to display the content of the worksheet is not too happy with Microsoft Edge browser)

Download Q20210127.mw

 

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