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Three 90 Challenge: Bigger and Better
As we transit into the new phase, it's essential to fuel our inner drive for success. On popular demand, GeeksforGeeks is happy to announce that we are back with the Thre...
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Check if any pair of semicircles intersect or not
Given an array arr[] consisting of N integers such that each pair of points (x, y) represents the endpoints of the semicircle as (x, 0) and (y, 0), the task is to check if...
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Mathematical
Geometric
Circles
DSA
C++ Keywords
C++ is a powerful language. In C++, we can write structured programs and object-oriented programs also. C++ is a superset of C and therefore most constructs of C are legal...
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Misc
CPP-Basics
C++
C++ Programs
Find all distinct quadruplets in an array that sum up to a given value
Given an array arr[] consisting of N integers and an integer K, the task is to print all possible unique quadruplets (arr[i], arr[j], arr[k], arr[l]) whose sum is K such t...
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Arrays
Java
Algorithms
Mathematical
Hash
Technical Scripter
Data Structures
HashTable
HashSet
Java Programs
Java-ArrayList
Java-HashMap
Picked
DSA
Sort an array of strings having characters at odd and even indices sorted in decreasing and increasing order respectively
Given an array arr[] consisting of N strings, the task is to first sort the characters at odd and even indices of the string in decreasing and increasing order respectivel...
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Strings
Sorting
Mathematical
DSA
Find the angle between tangents drawn from a given external point to a Circle
Given a positive integer R representing the radius of the circle and the center of the circle (X1, Y1) and another point (X2, Y2) in the cartesian plane, the task is to fi...
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Mathematical
Geometric
circle
Geometric-Lines
Circles
DSA
How to specify that the target will be downloaded when a user clicks on the hyperlink in HTML5 ?
In this article, we will learn to specify the target to a link when opened by the user which will further download the image or any other file. This link is used when the ...
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Web Technologies
Picked
HTML5
HTML-Attributes
HTML
HTML-Questions
Working with Excel Spreadsheets in Python
You all must have worked with Excel at some time in your life and must have felt the need to automate some repetitive or tedious task. Don't worry in this tutorial we are ...
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Python
Working with XlsxWriter module - Python
XlsxWriter is a Python module that provides various methods to work with Excel using Python. It can be used to read, write, applying formulas. Also, it supports features s...
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Python
Read CSV file and select specific rows and columns in R
In this article, we are going to see how to read CSV file and select specific rows and columns in R Programming Language.CSV file:To import a CSV file into the R environme...
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R Language
R-CSV
Vector recycling in R
We can see vector recycling, when we perform some kind of operations like addition, subtraction. . . .etc on two vectors of unequal length. The vector with a small length ...
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R Language
R-Vectors
How to read Excel file and select specific rows and columns in R?
In this article, we will discuss how to read an Excel file and select specific rows and columns from it using R Programming Language.File Used:To read an Excel file into R...
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R Language
R-Excel
How to Create a Step Chart in Excel
A step chart is used to represent data that changes irregularly between time intervals. Now, Excel doesn't have a feature to create a Step Chart like the one shown below b...
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Excel
Excel-VBA
Excel - Advanced
excel
Excel-How To
Excel Formulas
Tips & Tricks
Website & Apps
Microsoft Office
How to Delete a Pivot Table in Excel?
A pivot table is a tool in Excel that allows you to quickly summarize data in the spreadsheet. When it comes to deleting a Pivot Table, there are a few different ways you ...
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Computer Subject
Picked
Excel
How to Connect MIT App Inventor to Ubidots and Make a Basic Smart Home Automation App?
Today we are going to learn how we can connect a App made in MIT App Inventor to Ubidots(Cloud) and make a basic Smart Home Automation App which also gives us an idea of h...
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TechTips
How To
How to use Goal Seek in Excel for What-If analysis with Examples
Goal Seek is a "What if - analysis" tool available in MS EXCEL to determine or calculate any input value based on the formula and the output/resultant value. In simple lan...
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Picked
Excel
Excel - Advanced
Tips & Tricks
Website & Apps
Microsoft Office
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