metode numerik

oke, baiklah teman-teman, saya akan membagikan makalah atau pun file powerpoint dari mata kuliah METODE NUMERIK atau METHODS NUMBER.

pokok bahasan pertama yang disajikan adalah tentang galat. bahasa gampangnya sih kesalahan. intinya galat itu, kalau misalnya kita ngitung 10:3 = 3,33333... naaa, angka 3-nya itu kan gak pernah berhenti samapi kapanpun, kecuali dilakukan pemenggalan. misalnya kita memenggalnya dengan menggunakan 5 angka bena (angka penting). berarti yang kita ambil = 3,333. naaaa masih ada sisa 0,0003333... yang lain kan. naaa inilah yang dinamakan dengan GALAT.
untuk file powerpoint mengenai galat silakan bisa didownload di: galat


untuk pokok bahasan yang kedua sampai kelompok 6  kita membahas tentang mencari akar dari persamaan non-linear. persamaan non-linear itu yang memuat bilangan e^x.

oke, kita ulas (sangant) sedikit mengenai pencarian akar dari persamaan non-linear.

ada 4 cara yang bisa digunakan dalam mencari akar persamaan non-linear

1.. dengan metode biseksi dan regula falsi
2.
3.
4.
5.


1.  metode biseksi dan regula falsi
                 biseksi atau kata lainnya metode bagi dua. misalnya, diketahui selang [a,b]. pada setiap akan melakukan iterasi, selang [a,b] dibagi dua, misalnya kita sebut c, sehingga selang [a,c] = [c,b].
jika f(a) . .f(c) < 0 maka selang barunya [a,c]. kalau f(a) . f(c) >0 maka selang barunya [c,b].
untuk lebih jelasnya silakan download di : biseksi dan regula falsi

etode eliminasi gauss

uji lanjut statistika penelitian

finally, bisa juga upload yang format .zip. setelah sekian laam menunggu, bergulat dengan lambatnya jaringan internet. sila di download. semoga berguna

oh, ya isinya antara lain. uji LSD, uji tukey, uji scheffe, dan uji NSK




http://www.4shared.com/file/KTLy2Rf1/anava_lanjutan.html

analisis kompleks

assalamualaikum warahmatullahi wabarakatuh.

buat pendokumentasian online file-file saya yang ada di laptop maka saya akan mengupload beberapa file terpilih  untuk di posting di blog ini. semoga bermanfaat.

kok tadi gak kepikiran mau di zip aja ya. doh. gak papa deh, untuk satu materi definisi, sifat-sifat, interpretasi geometri dan ketiksamaan ini saya pisahkan antara file powerpoint dengan makalahnya, untuk selanjutnya akan saya jadikan satu.

makalah:
definisi, sifat-sifat, interpretasi geometri dan ketidaksamaan segitiga pada bilangan kompleks


powerpoint:
definisi, sifat-sifat, interpretasi geometri dan ketidaksamaan segitiga pada bilangan kompleks

definisi hidup part 1

kalau bisa diibaratkan, hidup itu kayak kita sedang sekolah, ada saat-sat belajar, istirahat, ujian dan libur.

kalau di sekolah ada belajar, maka di hidup ada yang namanya belajar mendekatkan diri kepada Allah SWT, kemudian belajar peka dengan lingkungan sekitar. setiap hari kita untuk mencoba lebih dekat dengan Allah SWT, setiap hari juga kita dihadapkan dengan interaksi kita sebagai sesama makhluk Allah SWT.

untuk naik kelas, diperlukan sebuah ujian yang menyeluruh. begitu juga dengan hidup, ketika Allah SWT ingin memindahkan kita ke tingkat yang lebih tinggi, maka diperlukan suatu cobaan. cobaan ini tentunya sudah disesuaikan dengan level dimana kita selama ini belajar. gak mungkin ketika kita kelas 3 SD lalu diberi soal ujian kelas 6 SD.

kalau kita berhasil melalui cobaan dengan nilai yang baik, maka naiklah level kita ke jenjang berikutnya.
tapi kalau gagal, mungkin Allah SWT akan me"remedial" dengan ujian yang serupa tapi tak sama. kalau di SMA dulu batas remedialnya sampai 2 kali, mungkin Allah SWT dapat memberikan remedial 3 kali, atau 2 kali, atau 1 kali atau bahkan tidak ada remedial sama sekali.
kalau remedial tidak ada, maka nilai kita akan buruk di mata Allah SWT.

ketika kita mendapat nilai buruk, ada dua kemungkinan, kita akan naik kelas dengan pengetahuan yang cukup mendekati kurang alias pas-pasan, atau kita akan tinggal kelas dengan mengulang lagi pendekatan-pendekatan yang dilakukan kepada Allah SWT.

masa-masa libur adalah ketika hidup itu tidak menanggung masalah. tidak ada beban yang harus ditanggung. kapan itu?? saya pun belum tahu kapan saatnya.

definisi hidup

ada banyak definisi hidup. masing-masing orang akan berbeda pendefinisiannya sesuai dengan fakta kehidupan yang sedang mereka alami.

seringkali melakukan hal yang sebenarnya tidak disukai ketika itu dilakukan orang lain kepada diri sendiri. hebat bagi orang yang bisa menyadari itu. susah untuk dilakukan. memang. perjuangan keras dibutuhkan untuk betahan hidup. adaptasi menjadi proses penting dalam setian jenjang kehidupan. tanpa adaptasi, matilah suatu makhluk.

tak mudah mempercayai orang yang sudah lama dikenal, apalagi orang yang baru dikenal. jangan bilang, "ah, aku sudah kenal dia x tahun (x bilangan bulat), sudah tahu betul gimana sifat-sifatnya". jangan. tetaplah waspada, hati-hati bertindak.

hukum sebab akibat berlaku di alam. bahkan Al-Quran pun menulis tentang itu. bahwa jika seseorang melakukan perbuatan baik seberat zararh pun akan mendapat balasan, sebaliknya jika berbuat keburukan maka akan mendapat balasannya walaupun hanya satu zarrah.
oleh karena itu, berhatil-hatilah bertindak dengan orang lain.

GAK CUKUP HANYA DENAN KECEPATAN MENGHITUNG

MATEMATIKA

memang identik dengan menghitung. tapi tidak langsung ketika anda bisa menghitung lalu bisa dikategorikan menjadi orang yang pandai matematika. begitulah yang kualami selama kuliah matematika di UNNES.

Kecepatan dalam berhitung tidak serta merta membuat anda pandai dalam matematika. yah, karena ternyata matematika itu luas sekali. selama yang saya pelajari, matematika terbagi menjadi 4 garis besar, yaitu: ALJABAR, GEOMETRI, STATISTIKA, dan ANALISIS.

oke, kita mulai dengan aljabar.
di SMP dan SMA anda sebenarnya pasti sudah pernah mengalami belajar aljabar, tapi aljabar sendiri itu ada yang tersirat dan tersurat. seperti contohnya, ketika SMP anda pasti mempelajari tentang: Operasi bentuk akjabar (tersurat sekali memang belajar aljabar), persamaan dan pertidaksamaan linear satu variabel (naaa, ini juga sebenarnya masuk ke pelajaran aljabar. untuk di tingkat selanjutnya kalian akan mempelajari persamaan dan pertidaksamaan hingga ke tiga variabel atau mungkin lebih), garis dan sudut agak dikit-dikit menggunakan aljabar. untuk selanjutnya bisa kalian klasifikasikan sendiri yang mana bentuk aljabar atau bukan

GEOMETRI
untuk pengertian geometri sendiri dapat dilihat di: GEOMETRI. Ini membahas tentang, pemodelan matematika, seperti, model kubus, model balok, model prisma, dan model-model bangun-bangun primadona di matematika

STATISTIKA
statistika ini banyak berhubungan dengan data, bagaimana cara kita mengolah data, lalu menganalisis datanya. kalau awal-awal si memang agak menyenangkan, tapi kalo udah masuk ke yang namanya uji-uji data (kayak, uji normalitas, uji homogenitas) itu udah pusiiiing. tapi jangan pusing dulu, karena skarang ada software yang sangat membantu dalam pengolahan statistika, yaitu SPSS.

ANALISIS
naaa, ini ni yang butuh penalaran tingkat dewa. susah banget dipahami. sangat abstrak. bagiku.


okey, itu dulu tulisan saya.

how to study mathematics

okey, artikel ini juga sebenarnya hasil copy paste dari http://www.math.osu.edu/students/how_to_study.html

saya juga gak tahu kalo ini melanggar UU atau tidak kalau meng-copy tanpa sepengetahuan dari yang bersangkutan, so, please give me some information that i am illicit.

thank you, enjoy read it

Department of Mathematics • The Ohio State University
100 Math Tower • 231 West 18th Avenue • Columbus, OH 43210-1174
Phone: (614) 292-4975 • Fax: (614) 292-1479

Home » Student Resources

How to Study Mathematics

INTRODUCTION

Why aren't you getting better grades in mathematics? Do you feel that you have put in all the time on it that can be expected of you and that you are still not getting results? Or are you just lazy? If you are lazy, this material is not intended for you. But if you have been trying and your grades still don't show your ability, or if you have been getting good grades but still feel that the mathematics does not mean very much to you, it is very likely that you do not know how to study effectively. This material aims to help you to study mathematics effectively.
Some of you, may feel that you have successful study methods of your own different from the ones described here. In that case, you need not feel you must change your methods, although you might profit from comparing your methods with these.
On the other hand, some of you may feel that the suggestions on the following pages are over-ambitious - that they would require more time and effort than you are prepared to give. You will probably be right. We cannot expect to do everything to perfection, but we can do the best we are able. Out of the suggestions offered, you can pick the ones that may help you most, and as you find your work improving, you may be able to try further suggestions. So scoff if you wish at these ambitious suggestions, but then give some of them a try, a fair try, and watch the results.

HOMEWORK

There is a common misconception that homework is primarily something to eventually hand in to the teacher. Actually, the homework is first and foremost a means of learning fundamental ideas and processes in mathematics, and of developing habits of neatness and accuracy. What is passed in to the teacher is only a by-product of that learning process. The following four-step routine is a suggestion for making your homestudy effective:
1. Get oriented. Take a few minutes to think back, look over your notes, and look over the book to see clearly what ideas you have been working on.
2. Line up the ideas. Think about the ideas, laws, and methods in the day's assignment or lesson. Don't forget to familiarize yourself with any new words in your mathematics vocabulary. Try to remind yourself of any warnings about errors to avoid that the teacher might have mentioned. Go through any examples given to be sure you really understand the concepts being illustrated.
3. Do the assignment. Think about the ideas the exercises are illustrating. You should be increasing your understanding as well as getting the answers. The following pointers will help you do a better job:

1. Get the assignment accurately off the blackboard. Have a definite place in your notebook where you write down the assignment or lesson. If you do not understand the assignment, don't hesitate to ask.
   
2. Follow the directions.
   
3. Work neatly and accurately.
   
4. Show your complete work, not just the answer. This will help you and your teacher when you are checking through for errors.
   
5. Always check back to be sure you have done all simple arithmetic correctly.
   
6. Do the work promptly before you have forgotten all the instructions.
   
7. If you get stuck, don't just give up! Look back at the book and your notes for ideas related to the problem. If your work on a problem seems to be completely confused, it sometimes helps to discard your paper entirely and start afresh. If you still can't clear your thinking, ask the teacher about the problems as soon as possible.

4. Help someone else, if you can. There is no better way to learn a topic than by trying to teach it! Also, it is often helpful to call upon a classmate when you do not understand a problem. Often, they are able to explain the concept to you as well (if not better than) the teacher.

HOW TO MAKE YOUR ERRORS HELP YOU LEARN

What do you do when an answer is wrong in your homework, or on a test? Do you throw it away and forget it-and then make the same mistake the next time? If you are wise, you will make those errors teach you something. Here's what you can do:
1. Analyze the error to see if you can find what you did wrong.
2. If it is a careless error and you really knew how to do the work correctly, make a note of it, and if you find that you keep making careless errors frequently, start working more carefully.
3. If you can't find where your error is, ask the teacher or a classmate to help you.
4. Keep a page in your notebook entitled, "Warning: Errors to Avoid." On the same page write a description of the corrected way to do that kind of exercise, being sure to emphasize the important idea behind it.

CLASSWORK: HOW TO MAKE THE MOST OF YOUR TIME IN CLASS

1. Get ready. In the minute of two before the class gets started, think over what you have been working on recently.
2. Have all necessary equipment: book, pencils or pens, notebook, homework assignment.
3. Take down the assignment promptly and accurately.
4. Concentrate. This takes an effort if you are the kind whose mind tends to wander.
5. Ask questions when you do not understand.
6. Listen to the questions and answers of others in the class. When another pupil is answering a question, think how you would answer the question.
7. Take part in the class discussion.
8. Do not write at the wrong time. When you are taking notes, be sure you do not miss anything that is said while you are doing so. When taking notes, there are two conflicting things you must try to do. One is to make your notes complete and accurate enough to be valuable to you later. The other is to make your notes brief enough so that you can continue to listen to what is being said in class.

HOW TO USE THE TEXTBOOK

1. Use the index and glossary at the back of the book, especially when you have forgotten the meaning of a word.
2. When your book gives an example to illustrate an idea, analyze the example carefully for the ideas behind it instead of just trying to make your exercises look like the example.
3. If you can't do an excercise, reread the explanatory material in the book and/or go over your class notes.
4. Make the most of the study helps at the end of each chapter.

HOW TO REVIEW FOR TESTS

1. Start reviewing far enough in advance so you have time to do a careful unhurried job, and still are able to go to bed early the night before the exam.
2. Be sure to go through your notes and the examples that are there. If they don't make sense to you, you haven't taken enough notes!
3. If there are some formulas for which you are responsible, make a list of them and then practice saying them, or writing them.
4. Use the review materials at the end of each chapter. If you are having trouble on a problem, go back to that section in the book and rework some problems there.
5. If you were the teacher, what questions would you ask on the test? Prepare yourself for those questions.
6. Since it is said that "practice makes perfect", one of the better ways of studying for a test is to do some problems that were previously assigned to you. go over your homework to be sure you understand the procedure you used in each section.
7. Get a good night's rest the night before the exam!
8. DON'T WORRY!

HOW TO TAKE TESTS

1. When you take a test, have the right attitude - take pride in doing the best job you can. Don't try to "get by" with doing as little as possible. Have confidence in your own ability.
2. Be serious and concerned enough about the test to do your best, but don't worry to the point of anxiety. Fear alone can make a person do poorly on a test, regardless of his ability and knowledge.
3. Have all necessary equipment.
4. FOLLOW DIRECTIONS. Read carefully and listen carefully for any special instructions, such as where answers are to be written, any changes or corrections, etc.
5. Look over the whole test quickly at the start and, unless you are required to do the questions in the order given, do the ones you are sure of first.
6. If you are unable to answer a question, leave it and go on to another, coming back to the hard one later. Often, with a fresh start, you will suddenly see much better what to do.
7. Be careful to show clearly what you are doing. Remember that the teacher is not a mind-reader, and your grade may depend on whether or not the teacher can see from your work that you understand what you are doing.
8. Work neatly. It makes a good impression on the teacher!
9. Check back as you go along for accuracy. Careless errors can make a great deal of difference in your score.
10. With the right attitude and careful preparation for a test you probably will do well on the exam.
11. Remember: The one or two hours of the test are but brief moments in your life span so DON'T PANIC!

update blog

zzupdate blog itu buth kesabaran yang besar. habis update widget-widget di blog. gak tau deh singkron apa gak dari warnanya

kontradiksi kenyataan dan keyakinan

asslamualaikum warahmatullahi wabarakatuh,,,

semoga lindungan allah swt selalu menyelimuti dimanapun kita ada. amiiinnn

tadi sekitar jam 4-an aku dapat telvon dari umakku.
salah satu pembicaraan kami adalah tentang SETAN. yah, walaupun setan ada dimana-mana dan selalu menggoda iman tapi baru kali ini aku tahu kalo setan bisa masuk sampai ke mata. bingung kan??nanti kujelaskan

secara singkat, aku ada keluarga yang tinggal sedaerah denganku, yaaa, kira-kira sekitar 10 menit naik motor kecepatan sedang.  malam sebelumya bapak dengan umakku main ke rumahnya. disitu dia cerita kalau di ditakalek (diganggu) dari orang jahat. orang jahat itu mengirim semacam setan atau iblis masuk ke dalam tubuhnya yang berakibat dia sering cepat marah dengan orang lain. dia udah berobat ke banyak tempat.

bapakku menyarankan agar dia berobat ke damar, disitu ada orang pinter yang sudah dikenal dapat "menyembuhkan" orang dengan gejala penyakit seperti itu. semalam umak dan bapak aku pun pergi mengantar dia ke damar.

di damar orang yang dikunjungi bilang " di badan dia memang banyak setan, banyak iblis. bahkan di matanya pun ada iblis. aku gak merinding dan agak lucu mendengar ini.lalu dia di rukiyah
bukannya aku gak percaya atau menyepelekan metode pengobatan seperti ini, tapi aku agak janggal aja mendengarnya.

apakah setan bisa nempel pada manusia???
apakah memang bener metode rukiyah itu efektif???
apakah orang yang rajin sholat  itu bisa ditempelin ssetan hingga ke mata-matanya??

analisis kompleks : DEFINISI, SIFAT-SIFAT, INTERPRETASI GEOMETRI, DAN PERTIDAKSAMAAN SEGITIGA PADA BILANGAN KOMPLEKS

http://www.4shared.com/document/M-zAAbuo/Presentation1_2.html