1. Nobel didn't mention the math prize in his will: therefore, the most direct reason is that he didn't want to set up a math prize. However, this does not mean that Nobel is not interested in mathematics or thinks that mathematics is not important. In fact, when Nobel invented chemical products such as explosives, he needed a lot of mathematical calculation and analysis, so he had a certain understanding of mathematics.

2. At that time, the dependence of scientific research environment and application fields on mathematics was limited: in the Nobel era, physics, chemistry and physiology developed rapidly, but mathematics was not widely used in scientific research at that time as it is now. Therefore, from a practical point of view, Nobel may think that the significance of setting up a mathematics prize is not as great as that of other disciplines.

3. Nobel may have doubts or negative views on some aspects of mathematics: for example, some historical records show that he may have had patent disputes with some mathematicians, or hold different opinions on the methods and achievements of mathematical research. These factors may cause him not to mention the math prize in his will.

Types of Nobel Prize:

1, Physics Prize: It aims to reward those scientists who have made outstanding contributions in the field of physics. The physics prize covers many fields, including particle physics, nuclear physics, condensed matter physics, cosmology and so on. Scientists who have won physics prizes have not only promoted the development of physics, but also had a far-reaching impact on the scientific and technological progress of mankind.

2. Chemistry Award: designed to reward those scientists who have made outstanding contributions in the field of chemistry. The chemistry prize covers inorganic chemistry, organic chemistry, physical chemistry, analytical chemistry and many other fields. Scientists who won the chemistry prize not only enriched the knowledge system of chemistry, but also made great contributions to human material civilization.

3. Physiology or Medicine Award: It aims to reward those scientists who have made outstanding contributions in the field of physiology or medicine. Physiology or medicine awards involve many fields, such as neuroscience, genetics, immunology, cardiovascular science and so on. Scientists who have won prizes in physiology or medicine have not only revealed the mysteries of human life, but also made great contributions to human health.