How do i prevent big fractions ?

Hello,

my function is of the form f = 9/r^10 - 1/6561. I have to apply f on a vector x, as f(x), and all of the terms are like f(38.935852412448142) = 'some really big fraction'. My x has 332 entries and Matlab does this calculation really slowly. Is there a way, so that f(x) is a decimal?

[James Tursa]

Please post the exact code you are using. Is this using the Symbolic Toolbox?

Answer 1

[Walter Roberson]

vpa() the expression.