Formulas, shortcuts and concepts that actually come up, worked through with examples instead of drills.
Math is the one subject where "when will I use this?" has a concrete answer, usually at the worst possible moment: splitting a bill, resizing a recipe, judging whether a statistic is lying to you. This shelf keeps the answers ready, worked through with examples instead of drills.
The how-to guides cover the calculations that actually come up, from percent change and mean deviation to significant figures and unit conversions. The concept entries take on the ideas behind the procedures: what a theorem actually claims, why the golden ratio shows up uninvited, how interpolation differs from extrapolation and when each one is trustworthy. Symbol and formula references round out the shelf for quick lookup.
The featured guides above collect the most-used references. For everything else, the list runs from adding exponents to Venn diagrams. Check your work, and check your units; the second one catches more errors than the first.
Most of us dread hearing or encountering anything that is related to math. Whether you like it or not, we do share a lifelong bond with mathematics. It is there everywhere and in everything that we do. Have you ever imagined what would life be like without mathematics? Can we even imagine life without mathematics?
The concept of similarity is fairly important in geometry and helps prove many theorems and corollaries. The ScienceStruck article provides an explanation of similarity statement in geometry with examples.
Descriptive and inferential statistics are both statistical procedures that help describe a data sample set and draw inferences from the same, respectively. The ScienceStruck article below enlists the difference between descriptive and inferential statistics with examples.
The golden ratio is derived from the Fibonacci sequence, and is seen universally in varied natural elements. It is a part of the natural dimensions of most biological as well as non-biological entities on this planet.
Parabolas are a set of points in one plane that form a U-shaped curve, but the application of this curve is not restricted to the world of mathematics. It can also be seen in objects and things around us in our everyday life. ScienceStruck lists out some real-life examples and their importance, which will help you understand this curve better.
A protractor is an instrument used to measure or draw angles. Most protractors are either circular or semicircular, and are typically made of transparent plastic for better precision. Here are some step-by-step instructions, provided by ScienceStruck, on how to use a protractor.
The resistance provided by air in the direction opposite to the direction of motion of an object that has some relative speed is known as ‘air resistance’. Learn how to calculate air resistance with the help of this article.
Percent recovery computes the percentage of an original substance that is recovered after a chemical reaction is completed. These mainly include purification reactions. It also determines their efficiency. This ScienceStruck article explains how to calculate the percent recovery of any purified substance.
Different types of statements are used in mathematics to convey certain theorems, corollaries, or prove some ideas. One such statement is the converse statement. This Sciencestruck article explains how to write one, along with some examples of converse statements.
According to chemistry principles, isotopes have same atomic number but different mass number. Abundance is defined as the amount of isotope contained in its parent element. This ScienceStruck post tells you how to calculate percent abundance for any element having isotopes.
This ScienceStruck article describes the specifics of velocity for an object in circular motion. The concept of tangential speed has been detailed, and the formula to calculate its value has also been specified.
Interpolation means finding unknown data that lies within the range of given values while extrapolation means projecting known data to obtain unknown values. But this is not the only fact that sets them apart.. Join ScienceStruck as we explore the meaning, methods, and applications of each of these two techniques of numerical analysis that are very similar yet have distinct differences.
A body is said to be in equilibrium when its neither in a state of motion nor its state of energy changes over a period of time. An undisturbed object continues to remain in its state of equilibrium. ScienceStruck explains with examples how to compute static equilibrium.
Young’s modulus is the ratio of tensile stress to tensile strain. This ScienceStruck post explains how to calculate Young’s modulus, and its relation to temperature changes and Hooke’s Law.
Reynolds number plays an important role in the study of fluid mechanics. In this ScienceStruck article, we shall study about the significance of Reynolds number, and find out what it is used for.
Geometry is great fun when you have all the geometrical formulas on your fingertips. This ScienceStruck article provides a complete printable list of geometrical formulas.
The area under a stress-strain curve represents toughness of a material. We provide you with information that will help you find area under a stress-strain graph.
The usage of Venn diagrams in mathematics, statistics, science, and engineering is widely known. While Venn diagrams ensure an easier representation of facts, they also aid the user in visualizing them. This ScienceStruck article helps you understand Venn diagrams with some examples, and also furnishes you with some free printable templates of the same.
Chemicals in concentrated forms are seldom useful. Hence, they are diluted using solvents in order to reduce their ‘ph’ value. This ScienceStruck post shows how to calculate the dilution factor of solutions, given their initial and final concentrations.
Skewed distribution is that in which the mean deviates from the peak of the distribution. ScienceStruck tells you about the types of skewed distributions, along with some of their real-life examples, for better understanding.
LaTeX is a package that simplifies the TeX typesetting. The Sciencestruck write-up below will provide you with a comprehensive list of LaTeX mathematical symbols.
Significant figures are a method to express the certainty regarding existing data and its related calculations. This ScienceStruck article will help you in understanding the rules for identifying significant figures with examples.
We come across different types of objects and materials that are fundamentally governed by specific geometric aspects, which make them appear unique in their own manner. This ScienceStruck article will provide you with detailed information about different kinds and names of geometrical shapes, along with their meanings and pictures.
The simplest chemical representation that denotes the ratio of elemental atoms of a compound in the form of positive integers is called empirical formula. So how does one go about finding the empirical formula? This ScienceStruck article will provide you with some easy steps for calculating this ratio, along with a few examples and practice problems.
Finding it difficult to recollect the exact meaning of a notation while solving mathematical equations? Don’t worry, ScienceStruck is here to help you out. Here’s a list of mathematical symbols and their meaning, for your reference.
Oxidation number/state is an important but very often misunderstood concept. It is crucial in understanding the nature of various reactions.
Having trouble remembering equations and formulas? Not all heads are geeky memory cards, and when it’s time for the tests, most of us struggle to get them right. Here are some tips and techniques to memorize formulas quickly.
Are you on the lookout for an easy way to solve quadratic equations? Well, then here is a simple way to solve a quadratic equation and to find the roots of the given equation by factorization method.
When you apply the right technique, solving quadratic equations is easy. In this write-up, I provide an easy to follow guide on finding solutions to these solutions.
Most of the competitive entrance exams declare the results of the applicants based on percentiles. This article will tell you about how to calculate percentiles and what exactly are they?
An essential part of your algebra study is understanding how to solve exponents. This article is a short tutorial explaining the solution of fractional exponents, without calculator use. Through this article, fractional exponents have been demystified.
To understand the metric system, the prefixes chart comes in handy. The metric system prefixes are also known as metric prefixes or SI prefixes. Scroll down this article to gain more information about this subject.
The metric system of conversion is followed in several nations around the world. The metric system charts in this ScienceStruck post will help kids understand converted values quite easily.
If you are curious about what exactly is cross sectional area of three-dimensional objects, this article will be an informative read. Here, you will also find a list of formulas for cross sections of various geometrical objects.
Coordination number, also known as ligancy, is the total number of points of attachment to the central atom. This article states some important information related to ligancy of a molecular compound.
In statistics, one of the most basic and important parameters that defines the nature of a particular data set, is mean deviation. The relevant formula and calculation technique for this parameter, is defined in the following lines.
Converting decimal numbers into Roman numbers might seem difficult. But, this article will help you in doing just that in a simple yet effective way.
The question of what prime numbers are, takes us deep into mathematics territory. In this article, we explain what’s special about these numbers.
If you are looking for guidelines on calculating the formal charge of an atom in a molecule, this article has what you are looking for. Here, you will find a clear explanation and an illustrative example of the same.
Learning how to reduce fractions is not a difficult task if the basic concepts of mathematics are clear. Here is some information about it...
