BY unknown FROM unknown

Take my first step in my adventure in learning new things in my lovely field "Computer Science", things will take me to another space, nowadays I'm interesting in open learning and MOOCs. I love the sentence that says "people gather together and teach each other skills they have " and love to share ideas with excited people about my interests.

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Perhaps the most important principle for the good algorithm designer is to refuse to be content

Aho, Hopcroft, and Ullman, The Design and Analysis of Computer Algorithms, 1974.

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I am working at CS106B Programming Abstractions :]

The goal of CS106B is to transform you from someone who knows how to write some code into a versatile, powerful programmer.

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You don't understand. I coulda had class. . . .

Marlon Brando's character in On the waterfront, 1954

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C++ is a programming language which simplifies complex tasks without sacrificing performance

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C++ makes programming more enjoyable for serious programmers.

Stroustrup

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What I can do in 6 months ?

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Fri Jan 24 20:00:34 EET 2014

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Otherwise you’ll find your hacking energy is sapped by distractions like sex, money, and social approval.

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And often enough our faith beforehand in a certain result is the only thing that makes the result come true

William James, The Will To Believe 

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today is the 7800th day of my life, I'll graduate next June after 200 days.

In those 200 days of my life I want to achieve what I ever achieved yet in my life and in my Journey of learning. I wish to master C/C++ programming languages and go deep in studying computer science especially artificial intelligence, machine leaning, natural language processing and neural network. And begin to solve complex and excited computational problems. this my dreams and wishes for the next months and I wish completing all of it and show to all fucking people around me what I can achieve!

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Return back again to my lovely blog and My learning journey

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Awesome Seminar "Tech yourself coding" :)

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Computers are everywhere in today’s world. The more you know about computers, the better prepared you will be to make use of them in whatever field you choose to pursue. Learning to program computers unlocks the full power of computer technology in a way that is both liberating and exciting. At the same time, programming is an intellectually challenging activity that comes easily to very few people. Taking a programming course requires a great deal of work and commitment on your part, but you will not be able to master programming without putting in that level of work somewhere along the way. The payoffs, however, are quite real. If you make the effort and keep up with the demands of the material, you will be able to make computers do amazing things.

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LinuxCon & CloudOpen North America 2013 - Linux Kernel Panel (by TheLinuxFoundation)

[by-unknown-from-unknown]

Hey! I was wondering if you could help me with something! I have homework from my intro to scientific programming class and I see to be stuck on one question...I was wondering if you could help? It says to write a C expression to evaluate -b(square root) b^2-4•a•c / 2•a Am I supposed to write out how to do do the problem? Thank you in advance!

the quadratic equation ?  ax^2 + bx + c = 0  and has two roots

x1 = (-b + sqrt(b * b - 4 * a * c)) / (2 * a) ,and

x2 = (-b - sqrt(b * b - 4 * a * c)) / (2 * a)

the first thing you need to check if a == 0 to avoid dividing by zero if it, you just print message to the console and tell the user that "The coefficient a must be nonzero."

also you need to check for (b * b - 4 * a * c) > 0 to avoid taking the square root of negative number, if it less than zero you print to the user that "This equation has no real roots".

if you checked the previous two conditions for avoiding dividing by zero or taking the square root of negative numbers you can evaluate the two roots directly using sqrt function "that computes the square root" from the math header  and the two expressions x1 and x2

I assumed that you are familiar with the basic C syntax, this problem doesn't need more than two if condition, and evaluate the two roots directly using familiar expressions.

If you want to ask in the first place how to compute the square root of just (b^2 - 4 * a * c ), and not how to solve the quadratic equation problem, then you must use sqrt function from  header, but before doing so you must check that (b^2 - 4 * a * c ) isn't less than zero.

I hope that I helped you solving your problem, You're welcome.

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Often, the real value of an interface lies not in the information it reveals but rather in the information it hides.

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As long as computers are used to solve problems of ever-increasing sophistication, the process of programming will of necessity become more sophisticated as well.