Plot line has missing segments

[LH_13783026]

Hi all, 

I have an issue with plotting a function on Mathcad Prime 11. For some reason there are missing segments in the plots of my shear-force diagrams. I'm not sure why this is happening, other plots I have made seem to work fine - any guidance would be much appreciated. 

The plots and respective functions are on pages 9 and 17 of the attached document. Thanks in advance

[terryhendicott · Accepted solution]

Hi,

Include the two points of legs in the vector of x2.  In the following worksheet have done this.

Cheers

Terry

[LH_13783026]

Hi Terry, 

Thanks for your response, I now realise that the increments I had used for x and x2 were too large, effectively skipping the points where those loads were applied. 

Many thanks

LH

[Werner_E]

What Prime is doing is mathematically correct - a vertical line can never be the graph of a function. A step means that there is nothing inbetween.

But I understand that you are used to see that vertical line segment.

Solution is to use a vector for the abscissa values instead of a range. In Prime 11 you can use the convenient "vec" function to convert a range into a vector.

Using the vectors solves your problem.

It depends on the way the functions V and V2 are defined if vectorization when calling them with a vector argument is mandatory. In your case it would not be necessary as Prime would apply automatic implicit vectorization, but I consider it good style to explicitly apply vectorization.

[LH_13783026]

An interesting solution. I'll have to give this a try, seems like a nice clean way of handling this issue. 

Many thanks

LH

[Werner_E]

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@LH_13783026 wrote:

An interesting solution. I'll have to give this a try, seems like a nice clean way of handling this issue. 

Many thanks

LH

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Yes.

Actually Terry also used vectors instead of ranges in his solution. I just wanted to show that its not necessary at all to add the two special values.