# Science

 What is real GDP and GDP growth? Gross domestic product is the holy grail of the modern politician (and not-so-modern economist). Whenever GDP soars, he will tell you your (...) November 15, 2018 – Jakub Marian – Economics
 How to understand GDP indicators Gross domestic product, or GDP for short, is perhaps the single most important measure in modern macroeconomics. That is not to say that (...) November 5, 2017 – Jakub Marian – Economics
 GDP of Arab League Countries 2016 The Arab League is a regional organization of 22 countries where (a dialect of) the Arabic language is spoken. The following table shows (...) October 26, 2017 – Jakub Marian – Economics
 What is $0^0$ ($0$ to the power $0$)? A short answer to this question is that $0^0$ is usually left undefined in introductory calculus classes, just like $0/0$, but it is often (...) October 15, 2017 – Jakub Marian – Mathematics
 Integral of $\cot(x)$ To integrate cot(x), recall that cot(x) = cos(x)/sin(x), so ∫ cot(x) dx = ∫ cos(x)/sin(x) dx. (...) September 21, 2017 – Jakub Marian – Mathematics

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 Integral of $\sin(x)\cos(x)$ The function $\sin(x)\cos(x)$ is one of the easiest functions to integrate. All you need to do is to use a simple substitution $u = (...) September 6, 2017 – Jakub Marian – Mathematics  How to calculate the factorial of 1/2 As I proved in my article on integration by parts (at the end), the factorial of a natural number$n$can be calculated using the (...) July 8, 2017 – Jakub Marian – Mathematics  Integral of$\log(x)$(or$\ln(x)$) The natural (base$e$) logarithm is usually denoted$\log(x)$in mathematics, but for the sake of students of other disciplines, we will (...) July 7, 2017 – Jakub Marian – Mathematics This website does not contain any ads and is completely dependent on the support of its readers. If you enjoy reading articles here, please, consider helping in one of the following ways:  Explanation of integration by parts Integration by parts is one of the first methods people learn in calculus courses. Together with integration by substitution, it will (...) July 6, 2017 – Jakub Marian – Mathematics  Integral of$\sin^3(x)$Integrating the third power of$\sin(x)$(or any odd power, for that matter), is an easy task (unlike$∫ \sin^2(x)\,dx\$, which requires (...) July 4, 2017 – Jakub Marian – Mathematics