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¡Û Àü°³(Expand)
Clear[a, b, c]
Expand[(a + b + c)^3]
3 2 2 3 2 2 2 Out[23]= a + 3 a b + 3 a b + b + 3 a c + 6 a b c + 3 b c + 3 a c + 2 3 3 b c + c
¡Û ÀμöºÐÇØ(Factor)
Factor[Out[23]] // Out[23]À» Àμö ºÐÇØ
¶Ç´Â Factor[%] : %ÀÇ Àǹ̴ ¹æ±Ý Àü °á°ú
¡Û ´Ü¼øÈ(Simplify)
Simplify[Sin[x+y] - Sin[x-y]]
Out[27]= 2 Cos[x] Sin[y]
¡Û ÇÔ¼öÀÇ Á¤ÀÇ
Clear[x, f];
f[x_] = x(Sin[x])^2
Solve[f[x] == 0, x]
¶Ç´Â Solve[f[t] == 0, t]
¡Û ÇÔ¼öÀÇ ÇØ Ã£±â(FindRoot)
FindRoot[f[x], {x, 3}] // ¼³¸í : x = 3¿¡¼ ½ÃÀÛÇÏ¿© ±Ù»çÀûÀÎ Çظ¦ ã´Â´Ù.
FindRoot[f[x], {x, 3, 4}] // ¼³¸í : ±¸°£ 3 ~ 4¿¡¼ ±Ù»çÀûÀ¸·Î Çظ¦ ã´Â´Ù.