摘要:
################################## 一:符号表达式expr对自变量x在a处的极限:limit(expr,x,a) 二:符号表达式expr对自变量x在a处的左极限:limit(expr,x,a,'left') 三:符号表达式expr对自变量x在a处的右极限:limit 阅读全文
摘要:
################################# 表达式f对自变量从a到b求和:其中inf表示正无穷大 F = symsum(f,k,a,b) F = symsum(f,k) syms k x S1 = symsum(k^2, k, 0, 10) S2 = symsum(1/k^2 阅读全文
摘要:
############################# sym/taylor taylor(f) is the fifth order Taylor polynomial approximation of f about the point x=0 (also known as fifth or 阅读全文