I am exploring solving equations.Took a utube video.My workng file attached here to.I would like to get around this issue,Pl. help.

R

RWickrama

10-Marble

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solve,L Not working

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I am exploring solving equations.

Took a utube video.

My workng file attached here to.

2024-12-28 23_56_32-Mathcad Prime - Solve Blocks & Symbolics Webinar - YouTube and 1 more page - Per.png

2024-12-28 23_51_02-PTC Mathcad Prime 10.0.1.0 - D__Vault WS_Vault Projects_TRAINING_02 MATHCAD_01-0.png

I would like to get around this issue,

Pl. help.

1_01-006-to-PTC.zip

Mathcad Usage

T

terryhendicottAnswer

21-Topaz II

Do it as indicated.

One equation (shown one) sets a result to a comparison resulting in Pseal either one or zero. so the equation being solved is -(G*(lambda-1/lamda^2)*so equal to 1 or zero. Then sets Pseal to the answer.

The first simply needs a unit added for the equality comparison to make sense.

T

terryhendicott

Answer

21-Topaz II

Do it as indicated.

One equation (shown one) sets a result to a comparison resulting in Pseal either one or zero. so the equation being solved is -(G*(lambda-1/lamda^2)*so equal to 1 or zero. Then sets Pseal to the answer.

The first simply needs a unit added for the equality comparison to make sense.

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1_241229-01-006-to-PTC.zip

Werner_E

25-Diamond I

@terryhendicott

Are you using the current Prime 10.0.1.0 ?

When I open your sheet and let it recalculate i get an error (variable P.seal not defined)

Reason seems to be the inline evaluation after the definition of P.seal.

When I delete the inline assignment, I see this:

Only if I define P.seal using the the unit psi right away it works as desired (and it does not matter if the unit psi is added to the zero or not)

The symbolics used to use the latest expression in a series of evaluations and so it should use the value in psi when we use the inline evaluation.

I don't know why it throws an error when using the inline eval now and it looks to me as a new bug.

So if you don't use the latest release of Prime 10 it may be a bug introduced in the latest 10.0.1.0

EDIT: It may have nothing to do with the latest release but seems to be a problem with a combination of language setting and unit system setting.
See my answer below.

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Werner_E

25-Diamond I

Hah!!

The aforementioned results were obtained when using Prime 10 in its native language setting which is German in my case.

When I start Prime using the command line parameter "/culture:en-US" to run in English, I get the desired result when I let the sheet of @RWickrama recalculate without making any changes..