Differential Calculus Differential Calculus In today’s session we are going to discuss about the differential calculus. First of all we must know about the calculus and its use. Calculus is a Latin word which is a small stone that is used for counting. Calculus is a field of mathematics. Calculus generally focuses on some topics of mathematics like infinite series, integrals, limits, derivatives etc. The calculus is classified into two broad sections, named as: 1.

Differential Calculus

2.

Integral Calculus.

These classifications of calculus are related to the fundamental theorem of calculus. In calculus we study the change in any quantity or thing. Today we are going to discuss about Differential Calculus.

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As mentioned above that it is a subfield or category of the calculus, it relates with the study of the changing rate of any quantity. In this subfield of calculus we learn about the derivative of functions. We learn to find the derivative of a function at a given input value which further explains the changing rate of the function near the given input value. This process of finding the derivative of any function is known as Differentiation. The fundamental theorem of the calculus tells us that the differentiation is just reverse process of the integration. Now the question arises is that what the Derivative is. Derivatives: Assume that we have two real numbers which are y and z and z is the function of y means that for each and every value of y there will be a corresponding value for z too. Then this relation between these two real numbers can be given as z = f(y); Now if the function f(y) is the equation for any straight line then there also exists two real numbers say M and B such that z = M*y + B where M is the slope of line and we can determine this by: M = change in z/change in y M = dz/dy here d denotes the change in. In above, if we take slope as a function f, then derivative of the function f at point y is best approximation of the slope of function at point y. So the derivative of function is: f’(y) = dz/dy. So this is the derivative of y.

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Differential calculus has several applications in real world; for instance, in physics we learnt that the velocity of a body or an object is the derivative of the displacement of the body or object in its moving state with respect to the time. Similarly the derivation of the velocity of the moving body or object with respect to the time is called acceleration. One more example of the differential calculus is Newton’s Law of motion according to which the force applied by a body is equal to the derivative of the momentum of the same body. So this law is also using differential calculus. To find maxima and minima of a function we get help of the derivatives in mathematics. The equations which use the derivatives are called differential equations. Derivatives are used in almost all the fields of mathematics such complex analysis, function analysis, measure theory, differential geometry etc.

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Differential Calculus

Calculus is a Latin word which is a small stone that is used for counting. Calculus is a field of mathematics. In today’s session we are goi...

Differential Calculus

Published on May 10, 2012

Calculus is a Latin word which is a small stone that is used for counting. Calculus is a field of mathematics. In today’s session we are goi...

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