How to i use a syntax' taylor' to apporiximate a function e.g logx using base point at x=1

How to i use a syntax' taylor' to apporiximate a function e.g logx using base point at x=1

Answer 1

[Walter Roberson]

syms x
taylor(log(x), 1)

[melissa tan]

syms x
taylor(log(x), 1)
Error using sym/taylor (line 99)
The value of 'x' is invalid. It must satisfy the function:
@(x)isvector(x)&&isAllVars(x).

When i try it become like this?

[melissa tan]

And you kindly also guide me how to approximate until fourth order? thank you

[Walter Roberson]

taylor(log(x), x, 1)

See the taylor documentation for how to change the order.