Samir Khan

1744 Reputation

19 Badges

14 years, 158 days

My role is to help customers better exploit our tools. I’ve worked in selling, supporting and marketing maths and simulation software for all my professional career.

I’m fascinated by the full breadth and range of application of Maple. From financial mathematics and engineering to probability and calculus, I’m always impressed by what our users do with our tools.

However much I strenuously deny it, I’m a geek at heart. My first encounter with Maple was as an undergraduate when I used it to symbolically solve the differential equations that described the heat transfer in a series of stirred tanks. My colleagues brute-forced the problem with a numerical solution in Fortran (but they got the marks because that was the point of the course). I’ve since dramatized the process in a worksheet, and never fail to bore people with the story behind it.

I was born, raised and spent my formative years in England’s second city, Birmingham. I graduated with a degree in Chemical Engineering from The University of Nottingham, and after completing a PhD in Fluid Dynamics at Herriot-Watt University in Edinburgh, I started working for Adept Scientific – Maplesoft’s partner in the UK.

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These are replies submitted by Samir Khan

Do you create a PDF via File>Export or via the File>Print menu?

Could you attach the document?

What OS are you using?

We've fixed that in the soon-to-be-released 2022.2 version.

@ Could you please send your original file to technical support and describe the problem?

There's no way of copy/pasting content from Flow into the forum (this is something we should fix!) You'll need to take a screen grab, save into an image, and upload into your post.

@tim_finks The Units palette contains a subset of the units that Maple Flow understands.

I usually insert an empty units placeholder (Ctrl+Shift+U) and then type in a unit (e.g. N*m)

@fkohlhepp Try using int(,numeric) instead of evalf(Int(,numeric)

@Christopher2222

Numeric by default is by design (I can go into the reason why, if you want).

If you keep the mouse button held down on the "symbolic" button for a few seconds, "symbolic" is locked and all future math containers (on that worksheet) will be symbolic. We can look into a global option (via the Tools>Options menu) to set containers to symbolic by default.

@Kitonum For Flow 2022, we introduced a native Flow help system for a limited number of packages and commands. We will include more documentation as we release newer versions (including dot releases). So we're not finished!

I don't think including the Maple help system in its original form would be the best decision for Flow. The help pages have to reflect the different design and goals of Flow. This is a time consuming task, so please bear with us on this

The common symbols palette is missing by design. We wanted a stripped down, slimline user interface for Flow so we've deliberately included a few palettes. If we have enough requests, we'll include the common symbols palette in a future release.

We have no current plans for custom palettes, but of course if enough users want this, we'll put it on the roadmap

@Christopher2222 

1. That's a known issue

2. I'm not quite sure what you mean by "when selected with the mouse, the button has to be held while pressing delete to delete". I don't have to hold down the left-mouse button (after selecting a container) while pressing Delete to delete (if that's what you mean). Could you provide more detail

3. This is a known issue

4. That's the behaviour by design.

5. We'll think about this for a future release.

@Christopher2222 This works in Maple Flow

evalf(ScientificConstants:-Constant(c,units))

@Christopher2222 One idea I'm mulling over is an option for

  • = to immediately evaluate a math container and show the results (but the focus stays in the math container)
  • Ctrl+= to define equations of the form LHS=RHS.

@charlie_fcl The only way to change the display precision is locally for each math container with the Context Panel. We may introduce an interface option to change interface(displayprecision) in a future version.

@charlie_fcl Flow does not support interface(displayprecision)

@charlie_fcl That was a problem introduced with the first release of 2021.2. We reissued 2021.2 with a fix. Please redownload and reinstall Flow 2021.2 from here

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