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# What practical applications do logarithms have?

## What practical applications do logarithms have?

Decibels, light intensity and and pH (as in, my pool water testing kit) are all well-known logarithmic scales. However, “… any natural phenomenon that grows or decays at a rate proportional to its current value (such as population growth or compound interest) can be modeled with logarithms (Hughes, 1996).

## What does log mean in engineering?

The logarithm (log) is the inverse operation to exponentiation – and the logarithm of a number is the exponent to which the base – another fixed value – must be raised to produce that number.

What is the use of mathematics in engineering?

Civil engineers use mathematics equation to study the chemistry of materials. In order to use the right material for the project, engineers measure the strength of the material and apply chemical equations to judge the strength of the material.

### What is the essence of mathematics in mechanical engineering?

In mechanical engineering, mathematics is important because it is required to solve problems, to analyze mathematical relations and in using the laws of nature, which are mathematical expressions. Yes, Mathematics plays a crucial role in deriving mechanical relationship.

### What were logarithms originally used for?

Invented in the 17th century to speed up calculations, logarithms vastly reduced the time required for multiplying numbers with many digits.

What are logarithms useful for?

Logarithms are defined as the solutions to exponential equations and so are practically useful in any situation where one needs to solve such equations (such as finding how long it will take for a population to double or for a bank balance to reach a given value with compound interest).

## How are logarithms used in real life?

Much of the power of logarithms is their usefulness in solving exponential equations. Some examples of this include sound (decibel measures), earthquakes (Richter scale), the brightness of stars, and chemistry (pH balance, a measure of acidity and alkalinity).

## What are the use of mathematics in technology and engineering?

Briefly, mathematics provides methods for organizing and structuring knowledge so that, when applied to technology, it allows scientists and engineers to produce systematic, reproducible, and transmittable knowledge.

What type of engineer uses the most math?

Electrical engineering is the most math heavy of the engineering disciplines. You rely heavily on differential equations when dealing with advanced circuit analysis and electromagnetism is basically a physics and math course. In a close second is mechanical engineering, which uses dynamics a lot.

### What concepts of mathematics are of importance to your field?

Mathematics provides an effective way of building mental discipline and encourages logical reasoning and mental rigor. In addition, mathematical knowledge plays a crucial role in understanding the contents of other school subjects such as science, social studies, and even music and art.

### Why do we use log scales in science and engineering?

There are two main reasons to use logarithmic scales in charts and graphs. The first is to respond to skewness towards large values; i.e., cases in which one or a few points are much larger than the bulk of the data. The second is to show percent change or multiplicative factors.

How can we apply properties of logarithms to solve equations?

In other words, when a logarithmic equation has the same base on each side, the arguments must be equal. This also applies when the arguments are algebraic expressions. Therefore, when given an equation with logs of the same base on each side, we can use rules of logarithms to rewrite each side as a single logarithm.

## What are some uses of logarithms?

To estimate the data in logs obtained from magnitude scales for earthquakes.

• Geologists also make use of logarithms to find the Gutenberg-Richter relation.
• Next,they also use logs to calculate alterations in atmospheric CO2,population growth.