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O carregamento dos gifs pode demorar um pouco.

Mathematical Ramblings - stpcpar - (2[mult]v+v[mult]cos(u))[mult]cos(v)[pv](2[mult]v+v[mult]cos(u))[mult]sen(v)[pv]v[mult]sen(u)[pv]0[pv]2[mult]pi[pv]0[pv]2[mult]pi[pv]80.gif:

Mathematical Ramblings - stpcpar - (4+(sen(8[mult]v)[div]4+1)[mult]cos(u))[mult]cos(v)[pv](4+(sen(8[mult]v)[div]4+1)[mult]cos(u))[mult]sen(v)[pv](sen(8[mult]v)[div]4+1)[mult]sen(u)[pv]0[pv]2[mult]pi[pv]0[pv]2[mult]pi[pv]100.gif:

Mathematical Ramblings - stpcpar - u[pv]v[pv](sen(2[mult]u)+sen(2[mult]v))[div]2[pv]-6[pv]6[pv]-6[pv]6[pv]100.gif