After selecting Insert/OLE Object/Formula Object, a second window opens in which one enters mathematical expressions. The font size is extremely small, how can I make it larger ?
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Do you want a larger font size in Writer when you return from Math? Or do you want to better see the future result while you are editing your formula in Math?
Have you tried to change the zoom factor with the slider in the bottom status bar if it is only a display matter?
I presume that you are in Writer.
- Click File > New > Formula to open the actual Math window
- Click Tools > Options > LibreOffice Math > Settings
- In the field for Scaling code input window, increase the percentage from 100% to say 200%. OK
- Close the Math window
- Insert a formula in Writer and the font in the input window will be double the size
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