Explain big oh notation in brief. Find big oh of the following function:f(x) = 5x4 + 9x2 + 7x + 9.
Question
Explain big oh notation in brief. Find big oh of the following function:
f(x) = 5x^4 + 9x^2 + 7x + 9.
Solution
Big O notation is a mathematical notation that describes the limiting behavior of a function when the argument tends towards a particular value or infinity. In computer science, it is used to classify algorithms according to how their running time or space requirements grow as the input size grows.
Big O notation characterizes functions according to their growth rates: different functions with the same growth rate may be represented using the same O notation.
The letter O is used because the growth rate of a function is also referred to as the order of the function. A description of a function in terms of big O notation usually only provides an upper bound on the growth rate of the function.
Now, let's find the Big O of the function f(x) = 5x^4 + 9x^2 + 7x + 9.
When determining the Big O of a function, we're interested in the term that grows the fastest as x approaches infinity. In this case, the term that grows the fastest is 5x^4. The other terms (9x^2, 7x, and 9) become insignificant as x grows larger and larger.
Therefore, we can say that the function f(x) = 5x^4 + 9x^2 + 7x + 9 is O(x^4). This means that the growth rate of the function is proportional to the fourth power of x.
Similar Questions
Big-oh notation is a method that is used to express the …………… of the running time of an algorithm
If f(4) = 9 and f ′(x) ≥ 2 for 4 ≤ x ≤ 9, how small can f(9) possibly be?f(9) ≥
1. Determine whether each of these functions is O(x).a) f (x) = 10 b) f (x) = 3x + 7 c) f (x) = x2 + x + 1 d) f (x) = 5 log x
What does O(n) represent in Big O Notation?*0/1a. Constant time complexityb. Linear time complexityQuadratic time complexity
What does the term 'Big O' represent in the context of time complexity analysis?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.