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Integral: How to weigh an elephant?

L??ng Th? Vinh, a renowned scholar, ingeniously weighed an elephant by using water displacement, showcasing his mathematical brilliance. His method relates to integration, which sums small quantities to determine total weight, underlying the connection between math and practical problem-solving.

What is a vector space and examples

A vector space (or linear space) is a fundamental concept in mathematics, specifically in linear algebra. It is a set of objects called vectors, along with two operations: vector addition and scalar multiplication, that satisfy… 

Basis of vector space

1. Basis of a Vector Space A basis of a vector space is a set of vectors that satisfy two key properties: Intuition: Properties: 2. Dimension of a Vector Space The dimension of a vector… 

Real, Imaginary, and Complex Numbers

Real numbers are all the numbers you can find on a number line, while imaginary numbers are derived from the square roots of negative numbers. Real Numbers () Real numbers are any values that can… 

How to Convert Fractions to their Decimal Form

Converting Fractions to their Decimal Form To do this, you simply divide the numerator (top number) by the denominator (bottom number). Example 1: Terminating Decimal To convert to a decimal, you calculate : Example 2:… 

Rational numbers

A rational number is any number that can be expressed as a fraction, or ratio, of two integers. This means it can be written in the form , where p (the numerator) is an integer… 

equivalent fractions

Equivalent fractions are fractions that have different numerators and denominators but represent the same value. For instance, , , and are all equivalent because they each represent the same proportion, one-half. Creating Equivalent Fractions You… 

What’s a fraction

A fraction is a number that represents a part of a whole. It’s written as one number over another, separated by a line. The Parts of a Fraction A fraction is made up of two… 

Fundamental limit rules with funny intuition

Let’s go over the fundamental limit rules (sum, difference, multiple, quotient, power) with their mathematical formulas and a funny or intuitive twist for each one. 🎯 1. Sum Rule 📏 Rule: 🤣 Funny Intuition: Limits… 

Key Roles of Transformation Matrices in Regression and PCA

Statistical Context: Projection and transformation matrices appear frequently in statistics, especially in regression and PCA, where they play a crucial role in simplifying complex datasets and revealing underlying patterns. These matrices help in miniminimizemizing errors… 

Change of Basis in Vector Space

Change of basis in vector spaces is crucial in computer graphics and machine learning. This post provides explanations and concrete example on this matter.

Subspace and Examples

The subspace is a subset of the vector space, preserving the operations and properties. This article presents the definition and examples, as well as counterexamples of this concept.

Understanding Vector Spaces with Concrete Examples

The vector space is an algebraic structure with properties of addition and multiplication, applied in many fields such as physics and machine learning. We will prove that Euclidean space and function space are vector spaces.

Matrix Properties and Remembering Tricks

1. Basic Additive Properties of Matrices: Ways to remember: We see that the basic properties of matrix addition are quite similar to those of real numbers, with the commutative property, associative property, and the existence… 

Vector derivatives

??o hàm theo vector bao g?m gradient, ma tr?n Jacobian và ??o hàm c?a ma tr?n, ?óng vai trò quan tr?ng trong gi?i tích, t?i ?u hóa và ?ng d?ng trong h?c máy.

Riemann sum

A Riemann sum is a method used in calculus to approximate the integral (or area under a curve) of a function. It is named after the German mathematician Bernhard Riemann. The basic idea behind a Riemann sum is to break up the region under a curve into small rectangles, compute the area of each rectangle, and then sum those areas to approximate the total area under the curve.

Example of using derivatives to find optimal drug dosage

Dosage Optimization: Pharmacologists use derivatives to find the optimal drug dosage that maximizes therapeutic effects while minimizing side effects. The concentration of the drug in the bloodstream is modeled as a function of time, and… 

Calculus can hurt

Supplementary contents for section “Calculus can hurt” in the KSML app: Limit: Derivatives Integral

Tricks for remembering elementary matrix operations

Connecting matrices to systems of linear equations can indeed help in better understanding and remembering the properties of matrices. By visualizing how matrix operations correspond to operations on systems of equations, abstract matrix properties become… 

Tricks for remembering integral rules

Understanding the relationship between derivatives and antiderivatives can significantly help in remembering and applying the rules for finding antiderivatives (also known as integrals). Here’s how this relationship aids in comprehension and recall: 1. Fundamental Theorem… 

examples of limit computations

Here are a few more examples of limit computations involving various techniques: Example 1: Basic Limit Find the limit: Solution: This is a basic limit where we can directly substitute : Example 2: Limit Involving… 

Mathematical functions

A function in mathematics and computer science is a relation between a set of inputs and a set of permissible outputs. It assigns each input exactly one output. Functions can be simple or complex, depending… 

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