I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

👉 Learn how to evaluate the tangent of an angle in degrees using the sum/difference formulas. To do this, we first express the given angle as a sum or a difference of two (easy to evaluate) angles, ...

Tutorial I wanted to prove that you don’t need a large studio space to photograph studio-quality pet portraits of your four-legged friend!

SELECT CONCAT(first_name, ' ', last_name) AS FullName FROM employees; SELECT LENGTH(first_name) AS NameLength FROM employees; SELECT SUBSTRING(first_name, 1, 3) AS ShortName FROM employees; ...

Excel formulas are the foundation of effective data management and analysis. Selecting the right formula can significantly enhance your productivity, minimize errors, and improve the accuracy of your ...

Have you ever found yourself endlessly dragging formulas across rows or columns in Excel, only to realize there’s got to be a better way? Maybe you’ve spent hours creating helper columns or ...

Excel works with some functions Epplus considers circular. For example a SUMIF function in Excel is only considered circular if the cell is actually relevant to the calculation. While Epplus throws as ...

Abstract: Activation functions are pivotal in neural networks, determining the output of each neuron. Traditionally, functions like sigmoid and ReLU have been static and deterministic. However, the ...

Microsoft Excel remains an essential tool for data management and analysis in businesses. With its numerous features, it can seem complex to master. To help you make the most of this software, ...