DERIVATIVE CALCULATOR

     Especially, in series and sequences, there can be needs about higher derivatives. Everyone knows that calculating higher derivatives can be difficult sometimes, and propabilty of making mistake is higher in this time. Therefore, if people combine their information with technology, they can calculate the derivatives easily. It does not time more time, can have derivatives quickly. Not needed spend a lot of time to calcutate it, and can  have more correct answer. This program is called Derivative Calculator

Let's look at the interface of the program,

On the up, there is the interface of Derivative Calculator. In the up of the program page, the variables such as x or y e.t.c. can be adjuctable, and then order of taking derivatives can be replacable. In the down side, there is a keyboard which contains terms of mathematics. Terms which are x, x^2, e, sin, cos, tan, cot, arcsin, arccos, arctan, arccot, and e.t.c It can be controlled from the keyboard.

Let's have an example for the program,

On the right side, there is a operation about second derivative of a funciton which is sinx*ln(x+1). The derivation is done to write by keyboard of the program, and then the second derivation of the function is calculated quickly.

Also, by buttons, people can have history of their operation which has been before. Therefore, not need to calculate again, previous examples are accessible.

In the picture which is left side, there is seen the operation that are occured before. People do not have to do operations again, the previous operations are always on their hand. Also, the most important thing of databases, all the information of derivatives are written with all details such as the funciton, order of derivation, and derivation of function.

Please be aware about the settings because the operation will be occured by depending on the options. On the picture, it is seen like the varaibles catagory, the order of the derivation and after the derivation, there is also numeric value of the derivation of a fuction.

    It is clearly seen that technology helps us to do everything. The most important thing is combine information and technology with each other because if not have any information about the subject which is needed, then people cannot have helps from technology. The program is recommended to have these things, and please try it. The link of the setup of program is located in down side of the page.


http://download.cnet.com/Derivative-Calculator-Real-36/3000-2053_4-75118902.html


Thanks...

GRAPHING PLOTTER

   Everybody knows that technolohy has a very important position in life. Also, in education, it helps people to do someting which they need. The program which will indroduce is called Graphing Calculator 3D. The program provides us to draw a graph easily. The difficulties of drawing graph in classic way is known since to plot the graph many operations should be done such as finding critical points, assymptotes, first derivatine and second derivatives and determine the function where the function concave down or concave down. However, it will seen sketching graph so easy without this things.

Let's observe the interface of the program,

On the picture, there is a part to write funcitons, and then the view of graph like 2D or 3D, colours of planes and lines,  cordinates, type of lines or planes, and trasparentsy can be adjustable. Also, the planes or lines which is drawn can be played and all cordinates can ben seen on the middle side of page. Cordinates can be seted as a cartesian, cylindirical and spherical. As it seen, using this program and drawing graph is so easy, and in 3D cordinate system, the intersection of graps or planes can be seen, and it will be sufficent to calculate area or volume. 

Let's have an example about 2D,

There is two functions on the pictures.  It is x=f(y)=1/y graph and y=f(x)=sinx graph. It is plotted quickly and so easy. Just, write functions, and operate the settings like thickness of line or plane, and limits of graphs. That is for all, when do them, then the graph will be okay. On the picture, it is also seen the intersection points and coordinates, and also it can be observed in graph.

Let's have an example about 3D,

There is no lines because it is 3D, so there is planes. There is funcitions as z=y^2, x=6y, and y=x^2+3z. Then there is planes on the graph. Although the functions are complex, the planes is drawn easily without no problem. People can be aware about the intersection points of all planes, and can rotate the planes. Therefore, all of the locations can be accessible.

    Hopefully, the explanation of the program is understandablee, and everybody wants to use the program to sketch a graph. After trying, they will be also aware about usefulness of the program. Also, there is a link where can be downloaded, and a way to try it. Should not be forgetten, the operations which are there, take a lot of time to calculate operations to draw a graph. Technology helps people to do them easily.

http://calculator.runiter.com/graphing-calculator/download-free-graphing-calculator.htm

Thanks...

MATRIX CALCULATOR

     The program on which we work is called Matrix Calculator Pro 5.4. Generally, this program helps people to calculate matrices without more operations. Everybody knows that to calculate matrices operations takes a lot of time and many many operations. People should agree about calculating skills, then they can use the program to earn rubbish time. It is so significant today's life since techology is developed day by day, people should follow the developments of technoology. 

Let's recognize the Matrix Calculator,

In the left side, the interface of the program can be seen. To start the program, firstly, a matrix or two matrices should be entered, then operations can done such as addition of two matrices, transpose of the matrix, substution of the matirces, inverse of matrix, multiplication of the matireces, maximum and minimum value of matrices, division of matrices,  length of matrices, sum of diagonal elements, dimensions of matrices, conjugate of the matirces, norm of matrices, singular value of a matrix, popwe of matrix, rank of matrices and multiplication with a vector.




A matrix or two matrices, which are A and B, should enter to the left side like the picture.

Matrices can be entered as depends on the people. It has not a limited size, so the operations can be done by the calculator.

It is a example which is seen in right side, there is a matrix which is called A, and another matrix that is called B. A is 3x4 matrix, and B is 5x4 matrix. When doing any operation, the result will be seen in the right side of program.







Let's do some operations as an example, 

Some operations in up is done like additon, substution, multiplication, and finding inverse of a matrix. To operate this things, just write a matrix or two matrices and press the buttons. Buttons can be understood clearly, and when locate on button without pressing, it will explain  its mision.

There is also an example, there  like previous example is two matrices, but the operations was done as a singular example since to calculate rank, minimum value, maximum value, transpose of a matrix and trace of matrix apply in a matrix. Therefore, there is no oblication to write two matrices. Please, be aware about the button which depends on the matrix such as if you do an operation on matrix B, please press the button which belonging to the matrix B.






    All in all, Matrix Calculator is recommended everybody to calculate matrices easliy and quickly. Also, there is a link where can be downloaded, and let's try it. When mathematics and techlonolgy combine with each other, then it will be so sufficent for education and experience.

http://en.kioskea.net/download/done/download-9806-matrix-calculator-pro

Thanks...

Economy of Brazil

Brazil is the largest national economy in Latin America, the world's sixth largest economy at market exchange rates and the seventh largest in purchasing power parity (PPP), according to the International Monetary Fund and the World Bank. Brazil has a mixed economy with abundant natural resources. The Brazilian economy has been predicted to become one of the five largest in the world in the decades to come, the GDP per capita following and growing. Its current GDP (PPP) per capita is $10,200, putting Brazil in the 64th position according to World Bank data. It has large and developed agricultural, mining, manufacturing and service sectors, as well as a large labor pool.

The purchasing power in Brazil is eroded by the so-called Brazil cost.

Components and Energy

Brazil's economy is diverse, encompassing agriculture, industry, and many services. The recent economic strength has been due in part to a global boom in commodities prices with exports from beef to soybeans soaring. Agriculture and allied sectors like forestry, logging andfishing accounted for 5.1% of the gross domestic product in 2007, a performance that puts agribusiness in a position of distinction in terms of Brazil'strade balance, in spite of trade barriers and subsidizing policies adopted by the developed countries.

Science and Technology

Technological research in Brazil is largely carried out in public universities and research institutes, and more than 73% of funding for basic research comes from government sources. Some of Brazil's most notable technological hubs are the Oswaldo Cruz Institute, the Butantan Institute, the Air Force's Aerospace Technical Center, the Brazilian Agricultural Research Corporation and the INPE. The Brazilian Space Agency has the most advanced space program in Latin America.

Uranium is enriched at the Resende Nuclear Fuel Factory to fuel the country's energy demands and plans are underway to build the country's first nuclear submarine. Brazil is one of the three countries in Latin America with an operational Synchrotron Laboratory, a research facility on physics, chemistry, material science and life sciences. And Brazil is the only Latin American country to have a semiconductor company with its own fab, the CEITEC.

Transport

There are about 2,500 airports in Brazil, including landing fields: the second largest number in the world, after the United States. São Paulo-Guarulhos International Airport, near São Paulo, is the largest and busiest airport, handling the vast majority of popular and commercial traffic of the country and connecting the city with virtually all major cities across the world. Brazil's railway system has been declining since 1945, when emphasis shifted to highway construction. The total length of railway track was 30,875 km (19,186 mi) in 2002, as compared with 31,848 km (19,789 mi) in 1970. Most of the railway system belongs to the Federal Railroad Corp., with a majority government interest. The government also privatized seven lines in 1997. 

By http://en.wikipedia.org/wiki/Brazil#Economy

Culture of Brazil

The core culture of Brazil is derived from Portuguese culture, because of its strong colonial ties with the Portuguese empire. Among other influences, the Portuguese introduced the Portuguese language, Roman Catholicism and colonial architectural styles. The culture was, however, also strongly influenced by African, indigenous and non-Portuguese European cultures and traditions.

Music

Brazilian music encompasses various regional styles influenced by African, European and Amerindian forms. It developed distinctive styles, among them samba, MPB, choro, Sertanejo, brega, forró, frevo, maracatu, bossa nova, and axé.

Sports

The most popular sport in Brazil is football. The Brazilian national football team is ranked among the best in the world according to the FIFA World Rankings, and has won the World Cup tournament a record five times.

Others sports practiced in Brazil are tennis, team handball, swimming, and gymnastics have found a growing number of enthusiasts over the last decades. Some sport variations have their origins in Brazil: beach football, futsal(indoor football) and footvolley emerged in Brazil as variations of football. In martial arts, Brazilians developed Capoeira, Vale tudo, and Brazilian Jiu-Jitsu. In auto racing, three Brazilian drivers have won the Formula One world championship eight times. Volleyball, basketball, auto racing, and martial arts also attract large audiences. Brazil men's national volleyball team, for example, currently holds the titles of the World League, World Grand Champions Cup, World Championship and theWorld Cup.

São Paulo organized the IV Pan American Games in 1963, and Rio de Janeiro hosted the XV Pan American Games in 2007. On 2 October 2009, Rio de Janeiro was selected to host the 2016 Olympic Games and 2016 Paralympic Games, the first to be held in South America and second in Latin America after Mexico City. Further, the country hosted the FIBA Basketball World Cups in 1954 and 1963. At the 1963 event, the Brazil national basketball team won one of its two world championship titles.

In May 2010 Brazil launched TV Brasil Internacional, an international television station, initially broadcasting to 49 countries. Luiz Inácio Lula da Silva, former President of Brazil, described its aim as "presenting Brazil to the world."

By http://en.wikipedia.org/wiki/Brazil#Culture

History of Brazil

Portuguese Colonization

The land now called Brazil was claimed by Portugal in April 1500, on the arrival of the Portuguese fleet commanded by Pedro Álvares Cabral The Portuguese encountered stone age natives divided into several tribes, most of whom spoke languages of the Tupi–Guarani family, and fought among themselves. Though the first settlement was founded in 1532, colonization was effectively begun in 1534, when King Dom João III of Portugal divided the territory into twelve hereditary captaincies.

Through wars against the French, the Portuguese slowly expanded their territory to the southeast, taking Rio de Janeiro in 1567, and to the northwest, taking São Luís in 1615. They sent military expeditions to the Amazon rainforest and conquered British and Dutch strongholds, founding villages and forts from 1669. In 1680 they reached the far south and founded Sacramento on the bank of the Rio de la Plata, in the Eastern Bank region. This arrangement proved problematic, and in 1549 the king assigned a Governor-General to administer the entire colony.

Independence and Empire

After the Portuguese military had successfully repelled Napoleon's invasion, João VI returned to Europe in April 1821, leaving his elder son Prince Pedro de Alcântara as regent to rule Brazil. The Portuguese government, guided by the new political regime imposed by the Liberal Revolution of 1820, attempted to turn Brazil into a colony once again, thus depriving it of its achievements since 1808. The Brazilians refused to yield and Prince Pedro stood by them declaring the country's independence from Portugal on 7 September 1822.
Despite the loss of Cisplatina in 1828 when it became an independent nation known as Uruguay, Brazil won three international wars during the 58-year reign of Pedro II (the Platine War, the Uruguayan War and the Paraguayan War) and witnessed the consolidation of representative democracy, mainly due to successive elections and unrestricted freedom of the press. Most importantly, slavery was extinguished after a slow but steady process that began with the end of the international traffic in slaves in 1850 and ended with the complete abolition of slavery in 1888. The slave population had been in decline since Brazil's independence: in 1823, 29% of the Brazilian population were slaves but by 1887 this had fallen to 5%.

Early Republic

The "early republican government was little more than a military dictatorship, with army dominating affairs both at Rio de Janeiro and in the states. Freedom of the press disappeared and elections were controlled by those in power". In 1894, following several military and economic crises, the republican civilians rose to power.

Little by little, a cycle of general instability sparked by these crises undermined the regime in a such extent, that by 1930 in the wake of the murder of his running mate, it was possible for the defeated opposition presidential candidate Getúlio Vargas supported by most of the military, led a successful revolt. Vargas was supposed to assume power temporarily, but instead closed the Congress, extinguished the Constitution, ruled with emergency powers and replaced the states' governors with his supporters. Between 1932 and 1938, 3 major attempts to remove Vargas from power occurred. The second one being the 1935 communist revolt which served as an excuse for the preclusion of elections, put into effect by a coup d'état in 1937, which made the Vargas regime a full dictatorship, noted for its brutality and censorship of the press.

By http://en.wikipedia.org/wiki/Brazil#Portuguese_colonization