li><a href=2d_commands/Abs.htm target=main>Abs</a><br><li><a href=2d_commands/Mod.htm target=main>Mod</a><br><li><a href=2d_commands/Sqr.htm target=main>Sqr</a><br><li><a href=2d_commands/Sin.htm target=main>Sin</a><br><li><a href=2d_commands/Cos.htm target=main>Cos</a><br><li><a href=2d_commands/Tan.htm target=main>Tan</a><br><li><a href=2d_commands/ASin.htm target=main>ASin</a><br><li><a href=2d_commands/ACos.htm target=main>ACos</a><br><li><a href=2d_commands/ATan.htm target=main>ATan</a><br><li><a href=