Wednesday, April 17, 2024
STEM

Different ways to generate a list and array containing numbers

In this post, I show different ways to generate a list and array containing numbers (ints, and floats, positive and negative, mixed) in python…using random, list, and numpy arrays. Why do we need both? NumPy arrays are very efficient for numerical operations and require elements to be of the same data type, whereas lists are […]

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STEM

Finding min, max in a sequence and plotting the distances

Let’s say that we have a sequence of numbers in consisting of whole numbers, fractions, positive and negative numbers of varying length, that is, of no predefined length (e.g.2.25, 5.25, 6.75, 8.25, 9.75…). What we want to do is to sort the numbers in ascending order, and find the differences between 2 adjacent numbers and […]

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STEM

Calculate your tank size capacity in gallons (and weight)

Don’t remember how many gallons your tank or pond holds? No worries, this little code below will calculate the amount of gallons the container can hold based on its dimensions you enter. Besides, knowing your actual water volume helps you determine what 10%, 30% water change means in gallons, and precise measurements of additives (conditioner, […]

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hobby Life STEM

Estimating the final pH, GH, KH of your water mixture

As a fish and shrimp keeper on different tanks with different creatures requiring different water parameters and conditions, it does me good to keep track of all those especially when replacing or changing water, or adjusting parameters for optimal suitability of the creatures. For example, for the shrimp tank, keeping track of KH, GH are […]

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Coding STEM

Calculating Euclidean Distance in Python

Euclidean distance is the length of the line segment between two points in Euclidean space. It can be calculated from the Cartesian coordinates of the points using the Pythagorean theorem. It is a simple formula enough to be calculated by hand but powerful enough to be used in Machine Learning and Artificial Intelligence applications for […]

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Coding STEM

UPDATED: Find out more about your birthday

Sometime ago, I shared my code on how to determined the day of the week of someone’s birthday based on the DOB. You can check the original post here: https://flyingsalmon.net/which-day-were-you-born/Today, however, I am extending it a little further and also showing additional information about the birthday. For example:The key news/historical events of that day!What generation […]

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