# Numerical Analysis

Have you ever been stuck on a math problem that seemed impossible to solve? Sometimes, exact solutions to math problems are too difficult or expensive to calculate. That’s where numerical analysis comes in. Numerical analysis is a branch of mathematics used to approximate the solution of continuous problems using numeric approximation. In this blog post, we’ll take a look at what numerical analysis is and how it works.

## What Does Numerical Analysis Do?

Numerical analysis helps provide approximate solutions to difficult or expensive-to-calculate mathematical problems. It does this by designing methods that give accurate numeric solutions despite being approximations rather than exact answers. This can be very helpful in situations where an exact answer simply isn’t possible or isn’t practical due to the amount of time and effort that would need to be expended.

To illustrate, let’s look at the classic example of finding the area under a curve. Calculating this precisely can be quite tricky and time-consuming; however, numerical analysis offers a way around it by providing an approximate solution with fewer calculations involved. The idea is that the more points you use in your approximation, the closer your answer will get to the true answer – meaning less work for you!

## Types of Numerical Analysis

Numerical analysis encompasses a wide range of techniques, including linear algebra methods such as matrix multiplication and solving systems of equations; interpolation techniques such as Lagrange polynomials; optimization algorithms such as gradient descent; random number generation; statistical inference; and Monte Carlo simulations. All of these can be used to solve various types of mathematical problems and provide more accurate numeric solutions than otherwise would have been possible without numerical analysis.

## Conclusion

As you can see, numerical analysis is an incredibly useful tool for solving difficult and complex mathematical problems in an efficient manner. Although it doesn’t provide exact answers like traditional mathematics does, it still gives us reliable approximations that are good enough for many applications – whether it’s finding areas under curves or estimating population parameters from sample data sets. So if you’re ever stuck on a seemingly impossible math problem, don’t forget about numerical analysis; it could just be the perfect tool for getting your problem solved quickly and easily.

CITE THIS AS:
Stephanie Glen. "Numerical Analysis" From StatisticsHowTo.com: Elementary Statistics for the rest of us! https://www.statisticshowto.com/numerical-analysis/