add vec3::operator{+,-,*} for vec3 and coefficient
treeb0acf2b3b495168d3502f01a770266d55dd10b97
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-rw-r--r-- 1592 CREDITS.txt
-rw-r--r-- 1251 LICENSE.txt
-rw-r--r-- 474 Makefile
-rw-r--r-- 1901 README.txt
-rw-r--r-- 1447 TODO.txt
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