Limits are used in calculus to define derivatives, continuity, and integrals, and they are defined as the approaching value of the function as the input approaches a specific value. A limit is the value that a function approaches as the input approaches some value. Limits are essential to calculus and mathematical analysis and are used to define continuity, derivatives, and integrals.
In general, as x → a ,f (x) → L, then L is called the limit of the function f(x). It can also be written as limx→af (x) = L
Limits are beneficial to us as they help us in our daily lives. Whether in business or even chemistry, limits play an important role in each of these subjects.

Applications of Limits in the Business Field
In the business field, the concept of limits plays a crucial role in helping businesses optimize performance, forecast trends, and make critical decisions across various domains. Below is a more detailed breakdown of how limits are applied in different areas of business:
Marginal analysis: Limits are used to calculate marginal cost and marginal revenue, which help in determining pricing and optimizing production.
For example - A company may use limits to understand how the cost of producing an additional unit change as production scales up.
Risk management: Limits are used to make model portfolio optimization, option pricing, and to calculate the value of risk.
For example - A company or investors can use limits to assess the value of the option under different market condition.
Demand Elasticity: Limits are used to analyses how demand changes with price, aiding pricing strategies. This is crucial for setting an optimal price and determining how a small price change can change the volume of sales.
For example - A company use limits to determine if lowering the price of the product by a small amount will significantly increase the sale, help in deciding best price to maximize revenue.
Applications of Limits in the Physics Field
Instantaneous Velocity and speed: Limits define the rate of change in position and speed, crucial for motion analysis. It is used to calculate this by considering the average speed over increasingly smaller intervals of time.
Formula : v = lim △t → 0 △x / △t
For example - If a car is moving at different speed, the limit helps determine its speed at a specific moment ,rather than just average speed over longer period.
Instantaneous Acceleration: It is the rate of change in velocity, and limits help in calculating it. The instantaneous acceleration velocity is found by taking the limit of velocity changes over a small time interval.
For example - when the car speeds up, limits are used to determine how quickly the speed is changing at any given moment.
Asymptotic Behaviour: limit also describes the behaviour of a physical system as the time or space approaches infinity, such as the behavior of a particle or forces at extremely small or large scales.
For example - In relativity, as object move closer to the speed of light, their mass increases without bound, which is modeled using limit.
Applications of Limits in the Biology Field
Population Growth: limits are used in biology to describe how a population grows over time, especially when it reaches at maximum size. The logistic growth model is used to predict how the population will grow at first, but slow down as resources are limited.
For example - The population of rabbit might grow rapidly at first but as food scarce, the growth rate slow down and eventually stabilizes. The limit helps model this behaviour.
Cell Division and Growth: Limit describes the growth rate of a cell or an organism. For instance, as cells divide and multiply, their growth rate slows down as they approach the maximum size that the environment can support.
For example - A colony of bacteria grows exponentially at first but eventually slows as nutrients are consumed and limit help in describing the slow growth rate of population reaches its carrying capacity.
Enzyme Reaction: In biochemistry, limits are applied to understand how enzymes catalyze reactions. At first, increasing the concentration of substrate (the substance on which the enzyme acts) speeds up the reaction. However, at a certain point enzyme cannot work faster, which is modeled using a limit.
For example - When a scientist adds more of a substance to a reaction, limits help to determine the point at which the reaction rate no longer increases.
Applications of Limits in the Chemistry Field
Reaction Rate: In chemistry, limits are used to describe how the speed of a reaction changes over time. The rate law expresses how the concentration of reactants affects the reaction rate, and limits help to calculate how the reaction rate approaches zero as the reaction comes to an end.
For example - As chemical reaction proceeds, limits can be used to calculate how quickly the recatants are used up and when reaction is equilibrium.
Chemical Equilibrium: Limits help explain how the concentrations of the reactants and products stabilize at equilibrium. When the forward and reversible reactions occur at the same rate, the concentration stops changing, and limits are used to describe this state.
For example - In reversible reaction, limit help determine the point where the amount of reactant and product remain constant over time.
Thermodynamics: Limits are used to describe the behaviour of a system as it approaches extreme conditions, such as absolute zero or infinite pressure.
For example - Limit describe the property of gas behaves as it pressure or temperature approaches extreme value.
Applications of Limits in the Sports Field
Speed and Acceleration: In sports, limits help analyze instantaneous speed (the speed at a specific moment). In track and field events like sprinting, limits help to calculate the athlete's speed at each point in the race.
For example - An athlete's speed might be calculated at the exact moment they cross the finish line, rather than looking average speed over the entire race.
Performance optimization: Limits are used to understand when an athlete reaches the point of diminishing returns with more training. At some point, more practice might not improve performance as much, which is modeled using limits.
For example - A marathon runner might reach a limit in their training, where each additional mile run doesn't improve their performance as much as the initial training did.
Sports Analytics: Limits are used in sports analytics to model performance over time. For example, by analyzing an athlete's performance, limits help predict when they might reach peak performance and when they might start to decline.
For example - A coach might use limits to predicts when player performance will start to decline due to age or overtraining.