One of his reasons for believing in god is that he knows (or thinks) that God is perfect. Since perfection includes existence, he therefore assumes that God must exist.

Answer:

Descartes made a series of increasingly unsupportable suppositions to back up his beleief in God:

1. I exist (A supportable statement for an individual - Cogito ergo sum)

2. I have in my mind the notion of a perfect being (The idea that anyone can develop an idea of a perfect being is not provable. The Aztec may have thoght their bloodthirsty gods perfect as well)

3. An imperfect being, like myself, cannot think up the notion of a perfect being (There is no proof although it is believable that humans are not perfect and it is debatable if the idea he has of a perfect being is indeed perfect)

4. Therefore the notion of a perfect being must have originated from the perfect being himself (This is a flight of fancy)

5. A perfect being would not be perfect if it did not exist (Buddhists, for example see perfection in the loss of being)

6. Therefore a perfect being must exist (This does not follow from any of the above statements)

A K Ramanujan says about the river Vaikai in this poem.It floods once in a year.Then the poets will sing of it.The old as well as new poets followed this way.But the river dries also.None will see that.Here he criticizes those poets who don't see the problems of drought as well as flood.

Madurai is a famous city in south India. It is well known for temples and poets everywhere. The poets have composed songs and poems in praise of the city. He says that the river had enough water to attract the poets only once in a year when it flooded during the monsoons. In the summers the river "Vaikai" dried to nearly a trickle. The base of the river was then visible with straws and women's hair blocking the rusted water gates. The wet stones looked like resting crocodiles and the dry ones liked shaven buffaloes resting lazily in the sun.

The poet was there once when the river was flooded. He noticed that people discussed about the inches rising water and the beauty of the floods, and he also noticed that the other poets also wrote about what the older poets stated, but no one wrote about the destruction caused by the floods which took away 3 village houses with it, a pregnant women expecting twins in her womb.

The poem is not so much about as about the attitude of people who favor sensationalism over humanism. The poet uses irony to express the callousness of old and new poets who romanticize the floods and ignore the human aspect of loss and suffering caused by the floods.

There are many great mathematicians who have formulas named after them.

I'll start with Leonhard Euler (1707 - 1783), and Euler's Formula:

• eix = cos(x) + i sin(x), where x is expressed in radians, and i is the imaginary unit i=sqrt(-1)

Gabriel Cramer, and Cramer's rule (not really a formula though). It is a method for solving systems of linear equations by expressing the equations as a matrix of coefficients, then taking determinants.

Babbage invented a 'counting machine' called The Difference Engine. This thing was spectacular. In those days it took a lot of people to count thing...taxes, bankers, areas of finance and markets...all about counting large amounts. Charles Babbage created his Difference Engine and it actually worked. He could put a couple of number in it and it would do any of various mathematical equations and serve him up the answer. It was a mass of cogs and wheels. A London museum constructed an original, working model from Babbage's blueprints.

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Here is more input from others:

• John Vincent Atanasoff (ataˈnasÉ”f) (October 4, 1903 - June 15, 1995) was the inventor of the modern computer. See "Atanasoff, Forgotten Father of the Computer" (1988) by Clark R. Mollenhoff.

• Charles Babbage never gave up. In 1833 he created another machine.

• Charles Babbage considered the father of Computers because he invented Difference Engine and then Analytical Engine, which can store the information on Punched Cards during 1800's ( Year ). Storing of Information on Punched Cards is done by Charles Babbage on those days, this is the reason - why he is so called as "Father of Computers". His sons like Wilkes called Babbage as "Grandfather of Computing".

To see a photograph of the museum's Difference Engine, check the resources under Related Links, below.