# How many people love math

## mathematics The formula for love

Mathematics is the science with which one can understand everything, they say. Understanding mathematics, on the other hand, is difficult for many people. But the effort is worth it: just a few basic mathematics knowledge, which is applied at the right moment, is enough to have a few advantages in everyday life. But it's not just about being able to calculate. No, the question is more whether math can help you find love, be better at sports or even become the best poker player at the pub table?

### Get better at sport

Mathematics has become more and more important in sport in recent years. Because anyone who wants to assess performance must be able to calculate. And sport is inextricably linked with numbers anyway: results are measured in numbers, thousandths of a second decide between victory and defeat, world records impress with high values. The mathematician also has advice on the subject of statistics. Professional athletes in particular benefit from the mathematical optimization of their training. But is that also of any use to me as a hobby athlete?

Recreational athletes are also well advised to monitor their body functions during extensive training. With the help of fitness bracelets, not only distance and speed can be measured, but also blood pressure or heart rate. And that should be within a certain range for endurance training - depending on age and physical condition. So you can train not only effectively, but also as healthily as possible. A simple formula applies here for a rough orientation:

Men: 220 - age = maximum heart rate

Women: 226 - age = maximum heart rate

### Find the great love

At first glance, math and love don't seem to have much to do with each other. But it can actually help you to find happiness in love - especially in times of online dating.

**A magic formula for love?**

If math is supposed to help in love, then there has to be some kind of magic formula? Numerous scientists have searched for exactly this universal formula of love and some believe that they have even found it.

A team of researchers from the University of Iowa, for example, has developed a method that is supposed to increase the chances of finding the right partner on the Internet, mimicking methods from media companies such as Netflix or Amazon. They use them to win customers and, above all, to retain them - just like in a relationship. The method is based on opinions, "likes" and recommendations that people leave on the Internet and on their interests, which they thereby reveal. The American mathematical method evaluates this data from two potential partners and calculates how well two people fit together. This increases the chances of finding a suitable partner by as much as 40 percent - at least say the researchers from Iowa. Unfortunately, what the algorithm cannot predict is whether a couple will actually be happy together. Another study says that our love happiness depends on the number five: Only after five serious relationships do we know each other so well that we know what to look for in the other. That is probably more of a daring theory.

The relationship researcher who is one of the most famous scientists who research love with the help of mathematics is John Gottmann. The American psychology professor claims to have developed a method with which he could predict with a 90 percent probability whether a couple will stay married or separate after four to six years. In his research, however, he also gives advice on how to have a happy relationship - all with the help of systematic observation of thousands of couples and the statistical analysis of the data. **Lousy quota: A single only falls in love every eleven minutes?**

Even if "love formulas" like the one from Iowa do not automatically ensure great love, mathematics can support dating portals on the Internet. With such calculations, at least those who have nothing in common can be sorted out. Can you really find love on the internet? Dating portals like "ElitePartner", "LoveScout" or "Parship" promise that at least. But before you invest money in their services and fall for advertising promises, you should first do a quick calculation.

"Parship", for example, promises: Every eleven minutes a single falls in love via their platform. Sounds good right? That only sounds good, because it is actually not at all. With advertising, the dating portal even made it to the "unstatistics of the month". Because with a little probability calculation, the chances are no longer that good: If an estimated five million members are looking for a partner on Parship and even two singles fall in love in Germany every ten minutes, thereby dropping out of the member pool and being replaced by two new ones, then If the probability for a member to fall in love is barely more than two percent per year, the unstatistics blog calculates. Online partner exchanges might not be such a good idea after all - because at least the probability of success does not seem to be blatantly higher here than elsewhere.

### Safe high poker

"Luck in love, bad luck in the game" goes a well-known proverb. But even those in love can dare to play a game thanks to mathematics. It is not for nothing that game theory is an entire field of research that revolves around this topic.

How about a game of poker? Because this "game of chance" has more to do with math than you might think. In poker, not only those who have good nerves and their emotions under control have an advantage, but also the players who are particularly good at mental arithmetic. You should also have listened carefully to the subject of probability theory in school. So, math can make you a better poker player.

In poker it is possible to use your own hand and the cards on the table to calculate the probability that a certain card will be drawn. Ideally, as the game progresses, they will know more and more precisely which cards their fellow players are likely to have in hand. In addition, the "outs" (cards that I need to improve my hand) and the "pot odds" (probability of making a profit) have to be calculated. It is also useful to know when to end. In addition, players can calculate the profit expectation. Depending on whether the calculation of the stake minus the probability of winning has a positive or negative result, you should either continue playing or not. So, in many ways, poker is more of a strategy than a game of chance. So it is not surprising that the President of the German Poker Sports Association, Stephan Kalhamer, is a qualified mathematician.

### Make the best decisions

We have to make important decisions at many points in life. Many people find that pretty difficult. But mathematics can even help in making decisions - and so well that we make better or at least "more optimal" decisions. For example, the so-called odds strategy (we already know the term from poker) by F. Thomas Bruss helps. The mathematical procedure comes from decision theory and is used to select an optimal opportunity from a sequence of events.

So it helps with questions like these: When is the right time to buy a house? Or which job offer should I accept? The odds strategy is considered to be mathematically optimal, as it should choose the last opportunity with the highest probability that is better than all previous events - for example the cheapest property or the best job offer. The only problem: The formula is a bit complicated. But then maybe learning math is worthwhile for the calculation of optimal decisions.

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