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Abstract Algebra

Have you ever wondered what would happen if you redefined some of the basic rules of algebra so that concepts you took for granted, like AB = BA, no longer apply? Abstract algebra does just that through the study of the properties that define algebraic structures. Post all questions about fields, rings, group theory, vector spaces, and the axioms that define them into this category.

1,849 Questions

What is the difference between Boolean algebra and mathematical logic?

Boolean Algebra is the study of the algebra of logic whilst Mathematical logic is a way of applying Boolean algebra. Other applications include set theory, digital logic and probability.

What is the formula of population growth?

There is no simple formula for population growth.

Some of the factors that you need to take account of are:

Emigration rates

Immigration rates

Demographics

Age-specific fertility rates

Death rates

What is the difference between matrices and determinants?

Both matrix and determinants are the part of business mathematics. Both are useful for solving business problem. Both are helpful for calculation of each other. For calculation of inverse of matrix, we need to calculate the determinant. For calculating the value of 3X3 matrix or more matrix, we need to divide determinants in sub-matrix. but there are many differences between matrix and determinants which we can explain in following points.

1. Matrix is the set of numbers which are covered by two brackets. Determinants is also set of numbers but it is covered by two bars.

2. It is not necessary that number of rows will be equal to the number of columns in matrix. But it is necessary that number of rows will be equal to the number of columns in determinant.

3. Matrix can be used for adding, subtracting and multiplying the coefficients. Determinant can be used for calculating the value of x, y and z with Cramer's Rule.

By Er. Hafijullah

Is a negative number an integer?

Integers are all of the real numbers that can be written without using a decimal or a fraction; i.e, they're the set of all positive and negative whole numbers plus zero.

Integers have the following properties:

i) 0 exists, and is the additive identity element; 0 + a = a for all a.

ii) 1 exists, and is the multiplicative identity element; 1a = a for all a.

iii) Addition and multiplication are both associative and commutative.

iv) An additive inverse exists for all elements a, denoted as -a.

v) Distributivity.

vi) Adding or multiplying two integers yields another integer.

From iv), we know that for each a > 0, there exists an additive inverse, -a, which must be less than 0, hence a negative number.

So, there are integers that are negative numbers.

But, not every negative number is an integer. There are negative numbers that must be expressed as a decimal or a fraction. For example, -0.5 isn't an integer, because, were you to not write it as a decimal, you would have to write it as a fraction: -1/2

What are applications for matrices?

Equations are an algebraic way of writing down a maths problem in shorthand.

Two or more simultaneous equations may be used to describe the same problem.

Matrices can be used to solve these simultaneous linear equations (that is equations with two or more unknown variables) and obtain the answer to those unknowns which satisfies both.

Equations are therefore generally solved to get values of unknown variables.......

Variable values are calculated (or assumed) to know all working or constant parameters of a system...

e.g. for a chemical reaction; generally pressure, temperature, concentration of reactant etc., may be combinations of unknown variables.

i.e. If these parameters are varied resultant yield get affected.........

We never know all properties at start, we first found relations between variables by doing practicals & form equations.........

Then these equations can be solved by many methods.......

Out of these many methods matrices is one......

So which ever system can be represented by equations, matrices have application there........

e.g. engineering problems, weather forecasting, aerospace design, financial calculations, chemical processes, construction calculations etc...........

And.....they were used by Albert Einstein to come up with his theories for General and Special Relativity.

Formula for population growth without limits?

The formula for population growth is based on the formula for interest. The formula is Final Population is equal to Initial Population multiplied by e raised to the power of the product of the rate of growth multiplied by the time of growth, or P(f) = P(o) * e ^ (rt).

What piecewise linear transformation functions are used in image processing?

The form of the piecewise functions can be arbitrarily complex, but higher degrees of specification require considerably more user input.

Convert 42.14 percentage into CGPA out of 4?

  1. You can use this table.

Equivalent GPA

% Marks 10-point Scale 9-point Scale 6-point Scale 4-point Scale 55 6.25 4.78 3.19 2.13 60 6.75 5.34 3.56 2.38 70 7.50 6.19 4.13 2.75


Apart from this just deduct 0.75 from your CGPA or DGPA ( In the case of 10 scale) and multiply by 10.

let the DGPA is 6.75 out of 10.

then, % equivalent will be (6.75-.075)*10=6*10=60 i,e 60%

Hope I helped you, all the best



RANAJIT K. NASKAR


*************************

To convert his or her CGPA every one should see his institution marks equvalence certificate.I want to provide a example of RUET university,Bangladesh(visit site: http://www.ruet.ac.bd)


the conversion formula according to academic council of this university is,

a)percentage marks=79+84(x-3.75); if CGPA , x is between, 3.75<=x<=4.00

b)percentage marks=44+20(x-2.00); if CGPA , x is between, 2.20<=x<=3.75


note: in this university honours marks is 3.75 out of 4.00 scale

first class is 3.00 out of 4.00 scale

and second class is 2.20 out of 4.00 scale

example:

Let one's CGPA is 3.32 out of 4.00 scale,so formula, b will be provided

so,percentage(%)=44+20(3.32-2.00)=70.40% .........so easy.


so I want to add that all universities formulae for its conversation is not same at all !


Regards,

Mostofa

What is the value of a 1977 Ithaca model 37 Featherlite 20 gauge?

This is a very nice shotgun with the woodstoc quite nicely refinished, natural and steel-wool finished with a polyuerathane finish

What is the value of a 1959 quarter?

The coin is very common, coins showing heavy to moderate wear are valued for the silver only, about $3.25 higher circulated grade are less than $4.00

Show that sum of two convex functions is convex.?

Consider 2 convex functions g(x) and f(x).

Using property of second derivative test we have:

g(x)'' > 0 and f(x)'' > 0.

We are interested in showing that y(x) = g(x) + f(x) is also convex.

y(x)'' = c*g(x)'' + k*f(x)'', where c and k are positive numbers (where is no convex function those coeficients after diferentiation will give you negative numbers).

Because c, g(x)'', k, f(x)'' are > 0 , we get y(x)'' also >0, hence y(x) is a convex function.

What is the value of a Remington 7400 Synthetic Carbine 30-06?

this rifle is going for $430.00 new. a rifle in used but good condition should fetch $380-400.

What is the value of a 1995 Starcraft 2010 Bowrider?

Many of the boats are valued in price close to $4,200 each. The amount will vary depending upon its condition and any upgrades that it has on it.

1976 quarter value?

None of the dual-date 1776-1976 Bicentennial Quarters regardless of mintmark struck for general circulation have more than face value. Only proof and uncirculated collectors coins sold from the Mint have premiums

What is the value of a 22 rifle?

Depending on the rifle, the maker and overall condition anywhere from 50-1500 USD.

What are the values in the 8 beatitudes?

The values in the beatitudes are not those normally seen in what people regard as great. They belong to simple and humble people, who quietly, yet surely know their God and serve Him whatever the cost, including ridicule and suffering. Such people have their eyes on eternal values, which the world cannot understand, nor follow, since it involves denying oneself and taking up the cross of Christ.

3Blessed are the poor in spirit: for theirs is the kingdom of heaven. 4Blessed are they that mourn: for they shall be comforted. 5Blessed are the meek: for they shall inherit the earth. 6Blessed are they which do hunger and thirst after righteousness: for they shall be filled.7Blessed are the merciful: for they shall obtain mercy.8Blessed are the pure in heart: for they shall see God.9Blessed are the peacemakers: for they shall be called the children of God. 10Blessed are they which are persecuted for righteousness' sake: for theirs is the kingdom of heaven.11Blessed are ye, when men shall revile you, and persecute you, and shall say all manner of evil against you falsely, for my sake. 12Rejoice, and be exceeding glad: for great is your reward in heaven: for so persecuted they the prophets which were before you.

What is the value of 1911 dime?

7-10-11>>> Assuming the coin is circulated and has no mintmark, the 1911 Barber dime is a comm date of the series. For an accurate assessment of value the coin needs to be seen and graded. Most coins of this type have seen heavy use and show a lot of wear. In general, the retail value of average circulated grade coins is $3.00-$8.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelry or have been cleaned have far less value if any to a collector or dealer.

What is the value of a Stevens 410 shotgun?

AnswerNeed more information, such as model number and condition. Stevens made several types of .410 shotgun.

sales@countrygunsmith.net

MY SHOTGUN IS A PUMP WESTPOINT MODEL 167 STEVENS ARMS WESTFIELD MASS VERY GOOD CONDITION

A engine in your 97 cadillac deville with the northstar engine and you need a new one is there a different engine you could put in it other than a northstar with out aluminum heads?

Answer

HEY THERE, I HAVE A 96 DEVILL WITH THE NORTHSTAR ENGINE IN IT. THE HEAD GASKET HAS BEEN DAMAGED SO I ORDERED THAT HEAL A SEAL OFF THE INTERNET AND INSTALLED IT MYSELF, ITS BEEN SIX MONTHS AND A LOT OF TRAVELING OUT OF TOWN NUMEROUS TIMES. IT COSTS ABOUT 159.00 BUT ITS WORTH IT.

BACK TO YOUR QUESTION THOUGH, I ALSO HAVE A 1990 CADI SEVILLE WITH A 4.5 V8 ENGINE IN IT, I HAVE SEEN A 96 AND 97 DEVILLE WITH THE SAME ENGINE IN IT. A FRIEND OF MINE HAS A 95 WITH THAT ENGINE IN IT ALSO. HOPE IVE BEEN SOME HELP. THESE CARS ARE GREAT CARS BUT WHEN IT RAINS IT POURS HUH. LET ME KNOW YOUR OUTCOME.



I have a 94 deville concourse which was originally equipped with the 4.6, but it has a 4.9 in it. So I guess somewhere along the way a different motor was dropped in.

What is the value of a 22 Hamilton Model 027 rifle?

Depending on condition, $50 (poor) to $250 (excellent). Since these were inexpensive boys' rifles they are seldom found in higher grades.

What is the value of a US M8A1 bayonet?

its around $15-$20. There is no such thing as an M8A1 bayonet. The M8A1 is the designation of the scabbard that holds the M-4, M-5 (series), M-6, and M-7 bayonet.