In my memory, a ray of orange fragrance has sneaked into my heart; In my memory, laughter inspired my confidence; In my memory, a little bit sweet, sweeter than my mood; Like spring breeze, like drizzle; Like sunshine, like a rainbow, it adds a little movement and a drop of color to life.

"Tomorrow, please bring an orange and a knife to math class," Mr. Ai, a math teacher, announced to the audience 5 1 ear. The silent classroom suddenly exploded, 5 1 ear changed to 5 1 mouth: "Teacher Ai is really ingenious, and there will be a good show tomorrow."

"Do you really bring oranges tomorrow? Is it for eating? The sun washed the earth again. Although it has not yet reached the peak season of oranges, the students have brought the most delicious oranges that can be bought at this time. When the bell rings, each of us has a trace of excitement and curiosity-even a sly smile.

"Please cut the orange in half." The smell of oranges is overflowing. I vaguely feel that there is an answer mixed with orange fragrance ... "This is half an orange, that is ..." The answer is certain: this lesson scores.

When the orange fragrance can reach the "lingering fragrance" and last for three days, the water bottle of knowledge is patting its belly with satisfaction. Many delicious students have licked the pulp and can't put it down. Those who haven't acted yet can't wait. Teacher Ai caught this message and waved: "Eat!" I took a bite, sweet to the heart and delicious on earth.

Laughter poured out in the orange fragrance, out of the classroom, out of the teaching building, out of the campus, out of the sky we longed for. This math class adds a piece of lemon to the colorless and tasteless math and study life, which becomes rich and colorful. The orange fragrance will always disappear, but the fragrance in our hearts will never be erased.

The significance of mathematics

Mathematics plays an important role in social sciences such as economics, linguistics, systems science and management science. Modern economic theory research takes mathematics as the basic tool, and explores the laws of macro-economy and micro-economy through the establishment and deduction of mathematical models. The intersection of mathematics and financial science Financial mathematics is a very active research field at present.

Control theory and operational research, especially linear programming, nonlinear programming, optimal control and combinatorial optimization, are widely used in transportation, enterprise management and government decision-making.