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error "no solution was found" in solve funcion

Rudemberg
1-Newbie

error "no solution was found" in solve funcion

Can anyone explain why some equations do not work with the solver command and how can I work around this error?

 

Here's an example of one of these errors ...

Anotação 2019-10-27 231747.png

isolating speed is simple in this example but still gives error.

 

thanks in advance

 

7 REPLIES 7

Prime 6 works for me.  

Capture.JPG

Are the labels correct?

 

e3.png

LucMeekes
23-Emerald III
(To:Rudemberg)

Please attach your worksheet showing the offending part.

Without that, it's very hard to find the cause of the error.

 

Luc

Here is what I get in Prime 6, using the new and the old symbolic

B.PNG

 

I think that Fred's guess is correct and you experience  a problem due to Prime's infamous auto labeling.

Check if both "v" in that region (the one in the formula and the other after "solve") are labeled the same (either both "variable" or both "-")

 

-MFra-
21-Topaz II
(To:Rudemberg)

Hi,

I do this way:

speed calculation.jpg

ttokoro
20-Turquoise
(To:Rudemberg)

image.png

image.png

I have same error in Prime 6.

image.png

Prime 5 can solve.

image.png

Both can solve.

-MFra-
21-Topaz II
(To:ttokoro)

Hi,

a way to solve the problem is the following:

ttokoroanswer.jpg

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