1. Economics: Continuous mathematical modeling can be used to study the relationship between supply and demand, price formation mechanism and market equilibrium in the economic system. By establishing a mathematical model, we can predict the market trend, analyze the policy effect and provide scientific basis for economic decision-making.

2. Finance: Continuous mathematical modeling is widely used in the financial field, such as option pricing, risk management and portfolio optimization. By establishing a mathematical model, we can quantify risks and benefits and help investors make wise investment decisions.

3. Biology: Continuous mathematical modeling can be used to study population dynamics, ecosystem balance and disease transmission in biological systems. By establishing a mathematical model, we can predict the changing trend of population number, evaluate the stability of ecosystem, and provide scientific basis for ecological protection and disease prevention and control.

4. Engineering: Continuous mathematical modeling is widely used in engineering fields, such as fluid mechanics, structural mechanics and dynamic systems. By establishing mathematical model, design parameters can be optimized, system performance can be predicted, and engineering efficiency and safety can be improved.

5. Traffic: Continuous mathematical modeling can be used to study traffic flow, traffic congestion, traffic signal optimization and other issues. By establishing a mathematical model, we can predict traffic conditions, optimize traffic organization, improve traffic efficiency and reduce traffic accidents.

6. Environmental science: continuous mathematical modeling can be used to study environmental pollution, climate change, water resources management and other issues. By establishing a mathematical model, we can evaluate the environmental impact, predict the trend of climate change and provide scientific basis for environmental protection and sustainable development.