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Text Encryptor Free

Text Encryptor Free

September 9, 2022September 9, 2022 Posted in SolutionsLeave a comment

Start by choosing your secret number. This number will serve as a key for encryption and decryption. Don´t forget it otherwise you won´t be able to recover your text again. It is better for your number to be 12 characters or more. Enter the coding number: Enter The Text To Encode or Decode : Encrypt/Decrypt

WebApps
QR Code Free Generator

QR Code Free Generator

September 1, 2022September 3, 2022 Posted in SolutionsLeave a comment

Use the following free web app to generate a QR code. First enter the website or the URL you want to generate the QR code for it. But any other text you want can be converted to a QR code. Then click Generate QR code button. And you are here. Your code is generated. If… Continue reading QR Code Free Generator

Sunset Calculation

Sunset Calculation

May 14, 2022 Posted in AppsLeave a comment

Knowing the earth rotation and revolution correctly makes it possible to calculate the time and angle of sunset precisely for any location on Earth as we did with sunrise. We should be aware that there are areas near the poles where the sun remains visible or invisible the whole day. We can calculate sunset from… Continue reading Sunset Calculation

AndroidAppsWebApps
Sun Rise Calculations

Sun Rise Calculations

May 12, 2022May 12, 2022 Posted in AppsLeave a comment

Knowing the earth rotation and revolution correctly makes it possible to calculate the time and angle of sunrise precisely for any location on Earth. We should be aware that there are areas near the poles where the sun remains visible or invisible the whole day. We can calculate sunrise from longitude and equation of time.… Continue reading Sun Rise Calculations

AndroidAppsWebApps
Sun Distance

Sun Distance

May 11, 2022May 11, 2022 Posted in AppsLeave a comment

Sun distance from earth ranges from 147 million kms to 152 Million kms. Sun distance depends on the time of the year and it is less in winter and more in Summer. The following web app gives this value for any day during the year: Year Sun Distance Today : – Created with Apache Echarts… Continue reading Sun Distance

AndroidAppsWebApps
Equation of Time

Equation of Time

April 19, 2022April 19, 2022 Posted in SolutionsLeave a comment

Equation of time is the difference between apparent solar time and mean solar time. EOT = apparent solar time – mean solar time Wikipedia defines EOT by the follwoing: The equation of time describes the discrepancy between two kinds of solar time. The word equation is used in the medieval sense of “reconcile a difference”.… Continue reading Equation of Time

AlgorithmsWebApps
Sun Right Ascension

Sun Right Ascension

April 2, 2022April 2, 2022 Posted in SolutionsLeave a comment

Wikipedia defines Right ascension (RA) as the angular distance of a particular point measured eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point in question above the earth.  When paired with declination, these astronomical coordinates specify the location of a point on the celestial sphere… Continue reading Sun Right Ascension

Algorithms

Proportion Test – Example

October 17, 2021October 17, 2021 Posted in StatisticsLeave a comment

In the previous post, we explained how to calculate P-value and thus perform hypothesis testing for categorical data. In this post we will give an example. A study was performed to see if there is a difference between males and females who use cannabis regularly. The sample size was 134 , 51 Females and 83… Continue reading Proportion Test – Example

Proportion Test

October 16, 2021October 17, 2021 Posted in StatisticsLeave a comment

The parameter of interest when we deal with categorical data is the sample proportion. An example of a sample proportion could be the proportion of people that are use cannabis. Imagine that we want to compare the proportion of males that are cannabis users to the proportion of females that cannabis users. Our two groups… Continue reading Proportion Test

Null Hypothesis

Null Hypothesis

October 6, 2021October 16, 2021 Posted in StatisticsLeave a comment

Null hypothesis is effectively stating the default situation. It is as you said there is nothing going on. When some one puts forward a claim the null hypothesis is that this claim is not true and needs to be proven. When we are testing between a new claim and the null hypothesis, a null hypothesis… Continue reading Null Hypothesis

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