Definition of Continuity
In mathematics, continuity refers to a fundamental concept in the study of functions and calculus
In mathematics, continuity refers to a fundamental concept in the study of functions and calculus. A function is said to be continuous if it does not have any abrupt changes or jumps in its graph, and can be drawn without lifting your pen from the paper.
Formally, we say that a function f is continuous at a point c if three conditions are met:
1. The function f(c) is defined.
This means that the function has a value at the point c, and there are no “holes” or undefined points.
2. The limit of the function as it approaches c exists.
This means that as the x-values of the function get arbitrarily close to c, the corresponding y-values approach a specific value. The limit from the left and the limit from the right of c must be equal.
3. The limit at c is equal to the value of the function at c.
This means that the value of the function at c is consistent with the limits of the function as it approaches c. In other words, there is no discontinuity or sudden jump in the graph of the function at c.
If all three conditions are satisfied, we can say that the function is continuous at c. If the function is continuous at every point within its domain, we call it a continuous function.
In simple terms, continuity means that there are no sudden changes, jumps, or breaks in a function’s graph. It allows us to smoothly follow the path of the function without any disruptions or inconsistencies. This concept is important in various areas of mathematics, particularly in the study of calculus, as it allows us to analyze the behavior of functions and make precise calculations.
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