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I want to get this math font:

This is the font I want to get

But I can only get this one:

This is the font I have

I have tried different options but I can't get it. Can you tell me what options I need to change in order to make the separation between characters smaller and to change only the math font. I have checked different questions with my same issue, but I have not been able to reproduce their solutions.

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  • Possibly not a good comment, but take it for what it is worth: LaTeX (maybe just LuaTeX) decides whether a font is a "math font" by looking to see if it has the ssty Open Type Feature. If you have FontForge, you can add ssty to any font. Of course, it must have the necessary characters, but many Open Type fonts do have them.
    – user103221
    Commented Mar 23, 2017 at 0:55
  • Could you tell us more about where and when this piece was published?
    – Mico
    Commented Mar 23, 2017 at 6:22
  • if you have the pdf of that document just look in the fonts menu (or use the pdffonts utiility) and get a list of fonts used, that is more accurate than asking people to guess which fonts are used in an image. Commented Mar 23, 2017 at 7:59
  • @RobtA is that at all useful unless you also add a Math table? wouldn't it be better to use the classic tex math font parameters even with an opentype font if it doesn't have a Math table? Commented Mar 23, 2017 at 9:07
  • @DavidCarlisle You are correct. It is also necessary to do more, not just add ssty. I made the assumption that the OP (being a math type) could take it from there. But the ssty part is enough to fool fontspec and unicode-math, as long as there is at least one table entry. Take any non-math font, add ssty with something such as mu substituting for u, and it will be permitted as a math font. May not be useful, though.
    – user103221
    Commented Mar 23, 2017 at 14:20

2 Answers 2

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I downloaded a PDF from the Journal’s site and ran pdffonts on it, getting

name                                 type              encoding         emb sub uni object ID
------------------------------------ ----------------- ---------------- --- --- --- ---------
MEGCHA+Gulliver                      Type 1C           Custom           yes yes yes    385  0
MEGCJA+Univers                       Type 1C           WinAnsi          yes yes no     386  0
MEGCJB+Helvetica                     Type 1C           WinAnsi          yes yes no     387  0
MEGCLB+Gulliver-Italic               Type 1C           Custom           yes yes yes    388  0
MEGCLC+GulliverSCOsF                 Type 1C           Custom           yes yes yes    389  0
MEGCLD+Symbol                        Type 1C           Custom           yes yes yes    403  0
MEGCLE+Gulliver-Bold                 Type 1C           Custom           yes yes yes    404  0
MEGCPD+MTMI                          Type 1C           Custom           yes yes yes    124  0
MEGCPE+MTSYN                         Type 1C           Custom           yes yes yes    128  0
MEGDBF+MTEX                          Type 1C           Custom           yes yes yes    129  0

This shows that the publisher is using proprietary fonts.

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This looks like a times I had to use recently in a paper. Try

\usepackage{mathptmx}
\usepackage{amsmath,amsfonts}

Might be you have to install the according package if it is not available on your system. This will probably also change the text font as shown in your figures.

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  • I already have this in my preamble: \usepackage{amssymb, amsbsy, amsfonts} \usepackage[fleqn]{amsmath} I added \usepackage{mathptmx} But I don't see any change in the document. Besides I don't want to change the whole text, but only the math environments.
    – Jaydi_21
    Commented Mar 23, 2017 at 15:55

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