Missing font in equations

[FrameMaker-dk]

I am editing som FM documents that were created in - I believe - FM 4 or 5. There is a lot of equations and they look allright. But not ALL of them. Some look like this:

It looks like there is a missing font with the "?Plus Symbol?"... I don't have a lot of experience using the equation editor but the font palette does not show any missing fonts. What might be the issue here?

[frameexpert]

It could be a math symbol that is not available in the font. Do you know what the font is?

[FrameMaker-dk]

Looks like Baskerville Old Face. I am going to use Century Schoolbook forward.

[Barb Binder]

Hi Bjørn:

When you click an insertion point in the equation and press the spacebar (which is used to select equation elements) does it select the ?Plus symbol? together or individually?

And do you have access to how that equation appeared in print or in a PDF? I wonder if it might be one of the Relations which all have ?s on both sides of the operator.

~Barb

[FrameMaker-dk]

The entire ?Plus symbol? is selected. Good point with the pdf's. I shall have to enquire about that.

[Winfried Reng]

Hi Bjørn,

Did you check which font you use?

Open the equation editor (Insert | Equations) and in the Equations menu click Equation Fonts.

There you can see which font is used.

When you open the font with a character map app (e.g. Babelmap), you see that there are numerous PLUS characters. Possibly your font misses the exact PLUS character which is used here.

When you save as MIF and open with e.g. MIFBRowse, you get the exact FrameMaker version and you could check, if the MIF code gives you more info.

@Klaus Göbel  has a free add-on which shows the Unicode code.

https://4xscripts.com/en/add-ons-main/scripts/complementary-functions/showcharcode

Best regards, Winfried

[FrameMaker-dk]

I suspect this issue is abot equations made before the days of Unicode. I don't have an overview as to how many of the equatioins that are affected, but changing font from the Baskerville used, to Century Schoolbook makes  no difference. It may eventually be easier to just rewrite the equations, I think.

[Winfried Reng · Accepted solution]

But aren't equation and equationvariable just character formats?

Can you just adapt these character formats?

I do not know, what is behind "Symbol". I do not have this character or paragraph format.

And if it's a font, I cannot change it to something else.

[FrameMaker-dk]

You are absolutely right @Winfried Reng! Bringing along the character styles when transferring the document contents from one template to another did the trick! Thanks for your help!

[FrameMaker-dk · Accepted solution]

So... this question bewildered me. Eventually I figured it out. 

It is possible to create your own math definitions and these reside on the reference pages. When I applied a new template to this old project, I did not take into account that I should preserve the math definitions.  Well... now I and you know! 🙂

[Barb Binder]

Hi Bjørn: can you share a screen shot of the reference page? This is new to me. 

~Barb

[FrameMaker-dk]

Absolutely. Here you go. And it IS amazing that having worked with this software since 1995 new, old features pops up!

[frameexpert]

New to me too! Thank you for posting.