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Hi! this is Tianyi, and I am really sorry to bother you, but I really need some help.
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<div class="">Recently, I was trying to learn TeX and reading "The TeXbook¡±. I am confused reading chapter4 "Fonts of Type¡±, the author did a really good job teaching switching one font from another, but when I was trying to explore more fonts, there are two
problems cannot be solved by myself. </div>
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<div class="">First, what are the all available fonts I can use. So unlike the Word just give me a list to select fonts, fonts are stored in the TeX directory structure(TDS), and I successfully use the \font control sequence to switch fonts I found in the tfm
file. However, there are many other files as following <img apple-inline="yes" id="F501F741-BC04-4018-99D5-AC6D53B1FB86" width="576" height="465" src="cid:9DA5D1A1-0C52-436B-8116-344B4EF125F7" class=""> </div>
<div class="">I did not know what I can do with other files.</div>
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<div class="">Second, if I found a new created font, how can I use it in TeX. </div>
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<div class="">To conclude, I feel like I need to know fonts itself, and then how TeX uses it and what the logic is. </div>
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