Kronecker’s delta – A function between two integers
Kronecker’s delta is defined as 0, if i ≠ j δij = 1, if i = j For example, δ12...
Mathematics
What is the infinity sign called?
Infinity means something which does not have a limit. The infinity sign ∞ is called a lemniscate. The sign was...
What is a Cusec?
Cusec is a method of measuring the flow rate of liquids. One cusec is 1 cubic foot per second. It...
Evaluate the sum of the angles of a spherical triangle
A spherical triangle is formed on the surface of a sphere by three arcs. When the magnitudes of the three...
Commemorating Pi on Pi Day
In every circle, the circumference bears a constant ratio to its diameter. This constant is a transcendental number, denoted by...
Who discovered ‘calculus’?
Calculus is a branch of mathematics which studies ‘change’. Accordingly, it deals with limits, derivatives, functions and indefinite series that explain...
