Hello guys and welcome to Python programming tutorials by Amuls Academy. In the previous tutorial we discussed about the namespace and variable scope and LEGB rule today in this tutorial we are discussing about the closures but to understand the closure we need to understand two more concepts the first one is we need to…

# Tag: function

## SQL Server video :- Explain aggregate functions,group by clause and having keyword ?

In this video we will try to understand what are aggregate functions what is the use of group by clause and how to use the having syantax We have a very simple table here which has country name population and year so you can see we have India and for the year of 1990 India…

## How to use the HLOOKUP function in Excel

HLOOKUP is one of Excel’s more powerful Lookup functions If your data is organized into horizontal rows, you can use the HLOOKUP function to search for a value in the first row of your data table and return a corresponding value from another row The easiest way to understand this function is to look at…

## Ex: Restrict the Domain to Make a Function 1 to 1, Then Find the Inverse

– GIVEN F OF X =THE QUANTITY X + 2 SQUARED, WE WANT TO DETERMINE THE DOMAIN SO F OF X IS INCREASING AND 1 TO 1. WE ALSO WANT TO GIVE THE RANGE AND USE INTERVAL NOTATION. SO HERE’S A GRAPH OF OUR FUNCTION F OF X. NOTICE IF WE DON’T RESTRICT THE DOMAIN,…

## Function/Waveform Generator || DIY or Buy

Owning a decent function Waveform generator is sometimes pretty much mandatory or for an electronics tinkerer to for example evaluate filter circuits or stress test a small MOSFET circuit the one I’ve been using is the Siglent SDG2082X Which works like a charm and offers tons of awesome additional features The only problem is that…

## Quadratic Functions – Find Vertex and Intercepts Using the Graphing Calculator

– IN THIS EXAMPLE, WE USE THE GRAPHING CALCULATOR TO FIND THE VERTEX, Y-INTERCEPT OR VERTICAL INTERCEPT, AND X-INTERCEPTS OR HORIZONTAL INTERCEPTS OF A QUADRATIC FUNCTION. IN THE PREVIOUS VIDEO, WE DID THIS BY HAND. SO, THE FIRST STEP IS TO ENTER THE FUNCTION INTO THE CALCULATOR. SO WE’LL PRESS Y EQUALS, CLEARING THE OLD…

## Composite functions and their domains (KristaKingMath)

Hi everyone! Today we’re going to talk about how to calculate composite functions and their domains. To complete this problem, we’ll calculate four composites from two functions and then specify the domain of each. Let’s take a look. In this particular problem, we’ve been given two functions, f of x equals x plus one over…

## How to use the SUMIF function in Excel

SUMIF is one of Excel’s most useful math functions If you have a range of values and you want to add together only numbers that meet a specific criteria SUMIF is the function you’ll want to use To illustrate how the SUMIF function works, let’s look at an example Here we have a table of…