Inherent ability = difficulty * accomplishment. Reply

All of Physics is this “Inherent ability = difficulty * accomplishment”. Thats just intuitive but can easily be seen to correspond mathematically with the Principle of least action.

First the edifice: whats the problem? The problem is given you move in straight line when every direction is same around you, which direction will you chose? While you are waiting for a good answer from astrologers intelligent people already give a good hint. Think you have some inherent ability which is fixed.

fixed: which changes only if estimated wrong.

That inherent ability is actually action. Accomplishments are adjusted for difficulties, you waded through a swamp 5 meters you would have accomplished in sand 8 meters with that given inherent ability called action. Because action is abstract we have been sticking to time and path-length, but they are not as fundamental, they are merely specifics. More…


Aberrations; a lecture in Optics. 1

Optical systems are studied under two assumptions

object point does not lie far away from the axis of the optical system.

rays taking part in image formation make a small angle with the axis of the optical system.

The domain of optics where above two assumptions are valid is called as Paraxial optics. Paraxial systems are highly idealized and in reality do not perfectly represent the situation. The consequential errors in image reconstruction are known as aberrations.
The paraxial assumption can be represented by truncating at the first term of the polynomial expansion of the sin function by the Maclaurin series. More…


A c++ code for calculating pi value. Reply

Finally I am successful in calculating pi value — less than 0.3% error, by using random number generation. Although my computer needs some fixation on its compiler or path definition etc, there are very good online compilers which helps in testing and running c++ codes: try the given link.

Computing the value of pi using std::rand()
Enter number of trials: 10000
Enter number of random (x,y) points per trial: 10
pi = 3.14376 +- 0.00519107
average – exact = 0.00216735
CPU time = 0.004027 secs

Here is the code I found by searching a good deal on the web. Yes I did tinker around but only because my own compiler (Turbo C++ on windows 10, 64 bits) was throwing some exceptions on the included headers.

using namespace std;

double pi_estimate(const unsigned long points) More…

Photo Credit;

BJP is not interested in rape, because they are not committed by congress. 1

BJP is not interested in rapes because they are not committed by congress.

You know what’s trending today on twitter. ‪#‎BJPstandswithrapists‬

These are the people that will make India digital.

1. Kiran Bedi — supposedly a strong proponent of safety of citizen and heralded as a pioneer of “liberalization of women” in the country and a brave lady, because she retired with a very high designation of police officer in the country.

She says >> small and insignificant RAPEs — and assaults, gets more coverage in media and they are overshadowing the issue of corruption.

Lesson; some rapes can be small. More so, BJP is not interested in rapes because they are not committed by congress. Corruption, when uttered by BJP has to be read as Congress, because that is how BJP sways its vote bank, by construing an image of Congress as an epitome of corruption in the country, while totally absolving the massive amount of corruption it has enacted in the very few years it has ruled in the country.

2. FM — is it a radio or an honorable minister, Arun Jaitley — says, one SMALL incident of rape in Delhi.

Lesson; rapes can be small, all rapes are not as important. It shall not concern us for various reason. Today India lost a very small match against australia, let’s wait for the world cup. Let’s not blast our honorable finance minister. He is only being inspirational. More…

Schrodinger Equation; Concepts and Problems in Quantum Mechanics. Reply

A long and technical discourse on Quantum Wave Function.

A 64 slide presentation styled discourse on the Quantum Wave Function. It consists of detailed solution of 5 important and interesting problems, apart from a threadbare discussion of the concepts.