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After gaining some insight from How does font size work in TeX?, now I want to change my font size values according to my preference.

As a follow up from the linked question, how can I set

\Large = 13pt

\LARGE = 15pt ?

In the linked question it's \Large = 14.4pt and \LARGE = 17.28pt.

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up vote 11 down vote accepted

The size for article.cls with option 11pt are declared in size11.clo. You can copy the definitions and change them. E.g. the original \Large is setup like this:


So use in your preamble (or a local sty).

\makeatletter %only needed in preamble

The 18 is the baselineskip (in pt). Adjust it to the value you want to use.

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