size[vect の長さ] または [mat の行数,mat の列数].
length()を, 有理式に現れる単項式の数は nmono() を用いる.
[0] A = newvect(4); [ 0 0 0 0 ] [1] size(A); [4] [2] B = newmat(2,3,[[1,2,3],[4,5,6]]); [ 1 2 3 ] [ 4 5 6 ] [3] size(B); [2,3]
car, cdr, cons, append, reverse, length, section nmono.
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