Invention of Calculator

They are mathematics heroes who should you respect. Imagine what would this world without a calculator. Mathematicians at this time, if given the choice to use a calculator or not, would choose to use a calculator. Moreover we as a student.

Along with the emergence of a pencil and paper, especially in Europe, the abacus lost popularity. After almost 12 centuries, another finding emerged in terms of computing machines. In 1642, Blaise Pascal (1623-1662) who was 18 years old, found what he called a numerical wheel calculator (numerical wheel calculator.)

He is used to help his father make tax calculations. Square box brass or calculating machines were found, called the Pascaline. Pascaline uses eight toothed wheel to add numbers to eight digits. This tool is a calculator tool based on the number ten. The downside of this tool is only limited to the sum.

After Pascaline invention, appears calculator that has multiple functions. The device was discovered in 1694, a German mathematician and philosopher, Gottfred Wilhem von Leibniz (1646-1716).

In 1820, mechanical calculators become popular. Charles Xavier Thomas de Colmar find a machine that can perform four basic arithmetic functions, addition, subtraction, multiplication, and division. With his ability, arithometer widely used until World War I.

Until finally, calculators continue to be developed and can be counted in large numbers. Vannevar Bush created a calculator to solve differential equations in 1931. This machine could solve complex differential equations that have been considered complex.

The machine was very large and heavy as hundreds of serrations and the shaft is required to perform calculations. In 1903, John V. Atanasoff and Clifford Berry tried to make a computer that applied Boolean algebra electricity, mathematical calculations that can be expressed as true or false.

Now, a calculator made in the form of a simpler, easier to carry. Even the phone can be a calculator.

Shakuntala Devi-Genius Mathematic

Shakuntala Devi is a calculating prodigy who was born on November 4, 1939 in a Brahmin family in Bangalore, India. Her father worked in a "Brahmin circus" as a trapeze and tightrope performer, and later as a lion tamer and a human cannonball.[citation needed] Her calculating gifts first demonstrated themselves while she was doing card tricks with her father when she was three. They report she "beat" them by memorization of cards rather than by sleight of hand. By age six she demonstrated her calculation and memorization abilities at the University of Mysore. At the age of eight she had success at Annamalai University by doing the same.

Unlike many other calculating prodigies, for example Truman Henry Safford, her abilities did not wane in adulthood. In 1977 she extracted the 23rd root of a 201-digit number mentally. On June 18, 1980 she demonstrated the multiplication of two 13-digit numbers 7,686,369,774,870 x 2,465,099,745,779 picked at random by the Computer Department of Imperial College, London. She answered the question in 28 seconds. However, this time is more likely the time for dictating the answer (a 26-digit number) than the time for the mental calculation (the time of 28 seconds was quoted on her own website). Her correct answer was 18,947,668,177,995,426,462,773,730. This event is mentioned on page 26 of the 1995 Guinness Book of Records ISBN 0-553-56942-2.

In 2006 she has released a new book called In the Wonderland of Numbers with Orient Paperbacks which talks about a girl Neha and her fascination for numbers.

Invention "0" Symbol

In the past, people start counting with the number "one" and ending with "ten" number, according to the number of our fingers. Usually calculated the number of livestock, people, etc.. But then people confused into naming the state "no" alias "empty". Fortunately, the confusion can be resolved with the discovery of the number "0".

“Sunya”In Hindu-India System

Numeral system we use comes from the Hindu-Indian. At that time this system has so much the number sign. Each figure has its symbol.

Around 1,500 years ago, this system changed. System-hindu india only take 9 first script and place value. The value of this place is a work unit, tens, hundreds, thousands, and so on.

That's when they start thinking to add one digit to designate state symbols "no." Found "Sunya" which means "empty". So the number 501 is written with the symbol number 5 in the hundreds column, "Sunya" in the tens, and 1 in the column unit.

How is the form of "Sunya"? Sunya not yet formed. When the character described with an abacus. Each abacus pole illustrating the value of units, tens, hundreds, and so on. If there is one seed in the pole was raised, that "Sunya".

Gambar Abakus

Arab Find "0" Symbol System

So how do we write without going through the abacus image "zero"? The first time the symbol "0" is found by the Arabic numeral system. They were then introduced to Europe and eventually around the world.

English-speaking community called it zero. This word comes from Arabic "sifr" which means empty.

By wearing the name of the first 9 digits, the present invention, the number 0 and the value of the place, we now can write the various figures. Even infinite.

Iseng-Iseng Matematika

Suka Matematika ????

Jago Matematika ???

Coba dulu Soal dibawah ini yaaaaaaaaaaaaaa ....

1. Rizal berumur 13 tahun. Sedangkan Akmal, kakaknya, berumur 22 tahun. Kapan usia Akmal dua kali lipat usia Rizal ? Kapan empat kali lipatnya ?

2. Didalam keranjang ada 6 buah apel apel itu dibagikan kepada 6 orang anak. Tetapi didalam keranjang masih ada satu buah apel. Mengapa bisa begitu ?

3. Apa yang harus ditulis pada angka 89, agar terbentuk sebuah angka yang lebih besar dari 8, tapi lebih kecil dari 9 ?

4. Ada gentong bertumpuk. Gentong itu diberi nomor. Setiap dua gentong yang bersebelahan, nomornya berjumlah nomor di atasnya. Bisakah kalian mengisi nomor di gentong yang kosong ???

5. Saat ini Naomi berulang tahun yang ke-7. Ayahnya berkata “Sekarang usia ayah 4 kali lipat usiamu. Kalau usia ayah 3 kali lipat usiamu, Ayah akan membelikanmu sepeda. Kalau usia Ayah dua kali lipat dari usiamu, Ayah akan membelikanmu sebuah mobil.“ Kapan Naomi akan mendapat sepeda dan mobil ?

6. Andi dan Bayu berlibur di sebuah desa. Suatu hari, ia melihat seorang bapak sedang menggembala itik. Itik itu banyak sekali. “Pak, berapa jumlah itiknya ?“ tanya Bayu. “Jika kamu menjumlahkan seluruh kaki dan kepala itik ini hasilnya 327. Tahukah kamu berapa jumlah itikku ?“ jawab Pak Penggembala. Ayo bantu Andi dan Bayu untuk menjawab.

7. Kesebelasan Nastula akan bertanding. Sebelumnya mereka berfoto bersama. Perhatikan kaos seragam mereka. Tahukah kamu nomor berapa yang seharusnya dipakai dua pemain terakhir ?

Bingung ???

Frustasi ?????

Ingin Bunuh Diri ????

JANGAN TAKUT !!!

Lihat aja jawabannya disini :

1. Usia Akmal empat kali lipat usia Rizal, sepuluh tahun yang lalu. Waktu itu usia Rizal 13 – 10 = 3 tahun. Usia Akmal 22 – 10 = 12 tahun.

2. Bisa saja, sebab 5 buah apel dibagikan kepada 5 orang anak. Dan sebuah lagi yang ada di dalam keranjang diberikan kepada seorang anak.

3. Sebuah koma. Jadi nilainya adalah 8,9

4. 106, 53, 53, 25, 28, 25, 11, 14, 14, 11, 5, 6, 8, 6, 5, 3, 2, 4, 4, 2, 3

5. Naomi akan mendapat sepeda pada usia 11 tahun. Saat itu usia ayahnya 33 tahun. Tatia akan mendapatkan mobil pada usia 22 tahun. Saat itu usia ayahnya 42 tahun.

6. 109

7. 22 dan 25

Mathmagic

Teman teman,

Kamu tau nggak kalau ternyata matematika itu asyik buat main-main ??

Kalau yang penjumlahan, pengurangan, perkalian, sama pembagian itu sih enak. Tapi kalau yang sin, cos, tan??? Apa enaknya

Hahaha.. bercanda bercanda.

Kalau mau bukti, aku punya permainannya nih. Siap siap ya ??

Ok. Lets Chek This Out !!

1. Ambil kertas, lalu tuliskan angka 9 tanpa diketahui siapapun.

2. Ajak temanmu untuk bermain, dan katakana kalau kamu punya angka rahasia. Lalu letakkan kertasmu didekat meja temanmu. Ingat ! tulisan angkamu harus di bagian bawah ya .

3. Berikan temanmu sebuah kalkulator

4. Mintalah temanmu mengetik 2 angka terakhir dari nomor telepon rumahnya di kalkulator itu.

5. Lalu, mintalah ia mengalikan nomor tadi dengan angka 2, lalu tekan =

6. Tambah hasilnya dengan nomor rumahnya, lalu tekan tanda =

7. Kalikan hasilnya dengan 18, lalu tekan lagi =

8. Angka-angka hasilnya dijumlahkan semua. Misalnya hasilnya 1440, jumlahkan 1 + 4 + 4+ 0

Hasilnya adalah ...........................

TET TERET TERET !!!!!!!!!!!!!!!

Sama dengan angka dikertas itu kan ????????

Tertarik untuk mencoba ??????

Mau Tau Hari Kelahiran Anda?

Dari tanggal lahir seseorang, kita bisa mengetahui hari kelahirannya lho! Mau tau caranya? Silahkan simak cara di bawah ini.

1.Pertama, kita misalkan tahun lahir teman kita dengan lambang A. Misalnya Kambing lahir pda tanggal 22 Oktober 2010.

Maka A = 2010

2.Sekarang kita hitung hari keberapa Kambing lahir pada tahun itu. Hasilnya kita beri lambang B.

Januari (31) + Februari (28) + Maret (31) + April (30) + Mei (31) +Juni (30) + Juli (31) + Agustus (31) + September (30) + Oktober (22).

Maka B = 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 22 = 295

3.Selanjutnya, kita cari C dengan rumus Tahun lahir dikurangi 1 lalu dibagi 4.

Maka:

C = 502 sisa 1 (Abaikan sisanya).

4.Sekarang kita cari dengan rumus

(A + B + C):7 = (2010+295+502):7 = 401 sisa 0

5.Lihat sisanya! 0 kan?

Cocokan angka sisa dengan tabel di bawah ini. Itulah hari lahir Kambing.

Jumat=0; Sabtu=1; Minggu=2; Senin=3; Selasa=4; Rabu=5; Kamis=6

Setelah mengetahui caranya, silahkan coba untuk mengetahui hari kelahiran Anda dan kerabat Anda.