Credit, Unfortunately your computer doesn't have a number pad nor number lock. Nor does it have those functions hidden any where. What I am saying is that it doesn't have alt codes that you can punch into your computer.
I am not sure if it will work, but you might be able to use them if you follow the advanced alt code guide, or if you are on the forums you can open a character map and copy and paste them from there. I am sorry that you can't really use alt codes other than that
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