This is Warren Kwok's Internet note pad, electronic diary, online rubbish journal, whatever you might name it ! It is an archive of my random thoughts in a chronological order. I am not good at reporting boring things and change them to lively. If you find this blog boring, sorry that it is your problem.
2014/09/08
sine wave with MS powerpoint
Don't laugh. I am not able to draw a sine wave with MS powerpoint. I don't want to use excel for importing such a graph from math equation.
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