Wednesday, 20 November 2013
Thursday, 14 November 2013
Calcutta university 3rd year Envs fieldwork report
Calcutta university 3rd year ENVS fieldwork report
http://www.mediafire.com/download/7gjc40015m5jlij/New_folder.rar
http://www.mediafire.com/download/7gjc40015m5jlij/New_folder.rar
Friday, 30 August 2013
What is Infinity?
Infinity ... | |
... it's not big ... | |
... it's not huge ... | |
... it's not tremendously large ... | |
... it's not extremely humongously enormous ... | |
... it's ... |
Endless!
Infinity is not a real number
Infinity is not a real number, it is an idea. An idea of something without an end.Infinity cannot be measured.
Even these faraway galaxies can't compete with infinity.
Here are some more properties:
Special Properties of Infinity |
---|
∞ + ∞ = ∞ |
-∞ + -∞ = -∞ |
∞ × ∞ = ∞ |
-∞ × -∞ = ∞ |
-∞ × ∞ = -∞ |
x + ∞ = ∞ |
x + (-∞) = -∞ |
x - ∞ = -∞ |
x - (-∞) = ∞ |
For x>0 : |
x × ∞ = ∞ |
x × (-∞) = -∞ |
For x<0 : |
x × ∞ = -∞ |
x × (-∞) = ∞ |
Undefined Operations
All of these are "undefined":"Undefined" Operations |
---|
0 × ∞ |
0 × -∞ |
∞ + -∞ |
∞ - ∞ |
∞ / ∞ |
∞0 |
1∞ |
Example: Isn't ∞ / ∞ equal to 1?
No, because we really don't know how big infinity is, so we can't say that two infinities are the same. For example ∞ + ∞ = ∞, so
And that doesn't make sense!
I could have also made 1=3 and so on ... so we say that ∞ / ∞ is undefined.
No, because we really don't know how big infinity is, so we can't say that two infinities are the same. For example ∞ + ∞ = ∞, so
∞ | = | ∞ + ∞ | which would mean that: |
1 | = | 2 | |
∞ | ∞ | 1 | 1 |
I could have also made 1=3 and so on ... so we say that ∞ / ∞ is undefined.
Saturday, 24 August 2013
Pronunciation Guide to Mathematicians Name
Pronunciation Guide to Mathematicians
Abel, Niels Henrik (1802-1829) (Ä bul) Agnesi, Maria Gaetana (1718-1799) (an YAY zee)
Banach, Stefan (1892-1945) (BÄ näkh)
Berkeley, George (1685-1753) (BÄRK lee)
Bernoulli, Jakob/Jacques/James (1654-1705)(ber NOO lee)
Bernoulli, Johann/Jean/John (1667-1748) (ber NOO lee)
Bolzano, Bernhard (1781-1848) (bolt SÄ no)
Bolyai, János (1802-1860) (BOY AY)
Cauchy, Augustin-Louis (1789-1857) (ko SHE)
Cavalieri, Bonaventura (1598-1647) (kä val YAY ree)
Clairaut, Alexis-Claude (1713-1765) (kla ROW, as in row your boat)
d'Alembert, Jean Le Rond (1717-1783) (DÄ lam bâr)
Dedekind, Richard (1831-1916) (DA de kint)
Desargues, Girard (1591-1661) (day ZÄRG)
Descartes, Rene (1596-1650) (day CÄRT)
Dirichlet, Peter Lejune (1805-1859) (dee ree KLAY)
Euclid (YOU klid)
Eudoxus (408-355 B. C.) (you DOK sis)
Euler, Leonhard (1707-1783) (OI ler)
Fermat, Pierre de (1601-1655) (fer MÄ)
Fourier, Jean Baptiste Joseph (1768-1830) (foo RYAY)
Galois, Evariste (1811-1832) (gal WÄ)
Heine, Eduard (1821-1881) (HI na, not a long a)
Hermite, Charles (1822-1901) (er MEET)
Jordan, Camille (1838-1922) (abstract algebra) (zhâr DÄN)
Jordan, Wilhelm (1842-1899) (Gauss-Jordan Elimination) (your DÄN)
Kovalevskaya, Sofia (1850-1891) (kov a LEF skä yä)
Kronecker, Leopold (1823-1891) (KROW nek er)
Kummer, Ernst (1810-1893) (KUM er)
Lagrange, Joseph Louis (1736-1813) (la GRÄNZH)
Laplace, Pierre-Simon de (1749-1827) (la PLAS)
Lebesgue, Henri (1875-1941) (la BEG)
Lie, Sophus (1842-1899) (LEE)
Legendre, Adrien-Marie (1752-1833) (la ZHÄN dra)
Leibniz, Gottfried Wilhelm (1646-1716) (LIP nits, long i)
l'Hospital, Guillaume Francois (1661-1704) (lô pee TAL)
Monge, Gaspard (1746-1818) (MÔNZH)
Napier, John1550-1617) (NAY pee air)
Noether, Emmy (1882-1935) (NOO ta)
Peano, Guiseppe (1858-1932) (pay Ä no)
Poincaré, Henri (1854-1912) (pwan ka RAY)
Another Poincaré link
Riemann, Bernhard (1826-1866) (REE män)
Sylow, Ludwig (1826-1866) (SEE lov)
Thales (THAY leez)
Torricelli, Evangelista (1608-1647) (tor ree CHEL lee)
Weierstrass, Karl (1815-1897) (vi er shträs, long i)
Friday, 19 July 2013
Symbols
Symbols
Some symbols in no particular order: (Some symbols did not convert properly, will try to fix them.)
~ tilde
* asterisk
+ plus sign
- hyphen, minus sign
± plus or minus
∓ minus or plus
× multiplication sign
÷ division sign
• dot or bullet product
∘ ring operator
= equals
≡ is identical to
≠ is not equal to
≅ is approximately equal to
≈ almost equal to
≐ is nearly equal to
< less than
> greater than
≤ less than or equal to
≥ greater than or equal to
Ú much less than
ä much greater than
/ slash, solidus, virgule, division
\ reverse slash, solidus, set minus
| vertical line
‖ double vertical line, parallel
∅ empty or null set
ℏ h-bar (Planck constant over two pi)
ℕ natural numbers
ℙ prime numbers
ℤ integers
ℚ rational numbers
ℝ real numbers
ℂ complex numbers
ℍ quaternions (after Hamilton)
𝕆 octonions
ℜ real part
ℑ imaginary part
dx differential of x
Δx increment of x
∂ partial derivative
∫ integral
∬ double integral
∭ triple integral
∮ contour integral
∯ surface integral
∰ volume integral
( left parenthesis
) right parenthesis
[ ] left and right square brackets
{ } curly brackets or braces
⟨ ⟩ angle brackets
⟦ ⟧ double brackets
floor brackets
ceiling brackets
‖ ‖ double vertical line brackets
∊ is a member of
⊂ is contained in
∩ cap, intersection
∪ cup, union
∨ or
∧ and
→ arrow, implies
⇒ double arrow, if then
⋯ ellipsis
! exclamation point, factorial
factorial (old notation)
∞ infinity
∝ proportional to
∀ for all
∃ there exists
∄ there does not exist
→ therefore
∵ because
perpendicular
𝔃̅ or 𝔃* complex conjugate
ℜ, Re real part
ℑ, Im imaginary part
% per cent
‰ per mille
$ Dollar
£ Pound (British)
€ Euro
¥ Yen
Å Angstrom
∇ del or nabla
∇² Laplacian operator
∑ sum
∏ product
∶ ratio
∷ proportion
∝ is proportional to
& ampersand
℃ degrees Celsius
℉ degrees Fahrenheit
. decimal point
° degrees
9 minutes
0 seconds
lb pound(s)
Hz hertz
ℵ alef
ℵ0 alef null, naught, or zero
ℶ bet
ℷ gimel
ℸ dalet
à Weierstrass p
|x| absolute value of x
[x] or ⟦x⟧ integral part of x
x|y x divides y
√ square root
∛ cube root
∠ angle
͞͞͞ ͞ ͞ vinculum above
___ vinculum below
horizontal fraction bar
℄ center line symbol
† dagger
℈ scruple
≀ wreath product
A X B inner, vector, or cross, product
A ∙ B outer, scalar, or dot, product
■ end of proof
QED end of proof
Sunday, 12 May 2013
BT & MB SEM-IV Model Question Paper of COMPUTER CA-401
BT & MB SEM-IV Model Question Paper of COMPUTER CA-401
http://www.mediafire.com/view/?7yol42jc4h7l01e
http://www.mediafire.com/view/?7yol42jc4h7l01e
BBA SEM-II Model Question Paper of MATH & STAT
BBA SEM-II Model Question Paper of STAT
http://www.mediafire.com/view/?qaq9w2myu2212qu
BBA SEM-II Model Question Paper of MATH
http://www.mediafire.com/view/?odgglmeimuwwvel
http://www.mediafire.com/view/?qaq9w2myu2212qu
BBA SEM-II Model Question Paper of MATH
http://www.mediafire.com/view/?odgglmeimuwwvel
Saturday, 11 May 2013
Networking Final Note+HTML viva Qh & ans+ Practical Qh pattern
Click to downloads
http://www.mediafire.com/view/?kfwsoq6sjwndzmm
Click to downloads
http://www.mediafire.com/view/?h2irg04x1xgy4nj
Click to downloads
http://www.mediafire.com/view/?tqaw6njemfw2t73
http://www.mediafire.com/view/?kfwsoq6sjwndzmm
Click to downloads
http://www.mediafire.com/view/?h2irg04x1xgy4nj
Click to downloads
http://www.mediafire.com/view/?tqaw6njemfw2t73
Monday, 7 January 2013
calcutta university 3rd year Envs fieldwork report
Calcutta university 3rd year Envs fieldwork report
http://www.mediafire.com/download/7gjc40015m5jlij/New_folder.rar
http://www.mediafire.com/download/7gjc40015m5jlij/New_folder.rar
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