# Inverse Factorial

Problem:
It is easy to find the factorial of a positive integer by using the factorial command in MATLAB? But how would one find the value of an integer n in MATLAB such as n!>m, where m is a real number. Such inequalities need to be found in problems such as finding how many terms of the Taylor series are needed to assure that the true error is less than a certain number. To see an example of such a need, see Example 6 of this document: http://bit.ly/12Fktwm

Solution

clc
clear all
m=32034567.89
n=0
while (factorial(n)<=m)
n=n+1
end
n

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## 0 thoughts on “Inverse Factorial”

1. alperyldz says:

Reblogged this on Mustafa Alper YILDIZ's Blog and commented:
Very useful application of MATLAB for finding number of terms in Taylor series needed for true error determination less than a certain number.

2. alperyldz says:

Reblogged this on Mustafa Alper YILDIZ's Blog and commented:
Very useful application of MATLAB for finding number of terms in Taylor series needed for true error determination less than a certain number.