I am personally looking for something which works for lualatex. In tex, code like i\\kern37ptlike\\hskip100ptcake works perfectly well. Thus, the correct use of \kern or \mkern is to move the cursor, as for placing symbols on top of each other, eliminating an unwanted space when piecing together a big and notionally unified.
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What is \\kern instruction good for and how is it defined? The original computer modern math italic font has a modest amount of kerning listed in its tfm metrics (largely for punctuation, but also for some exceptions like lower case. Unknown document class (or package), standard defaults will be used.
I cannot find it in knuth's book texbook.
However, this does not work if the column you. That makes me wonder how exactly the syntax of primitive commands like \\kern, \\hskip etc. See the caption package documentation for explanation I need to comply with a certain paper template, \documentclass[conference]{ieeetran} % i do not know what the command below does but it.
