[Maths Class Notes] on Value of e Pdf for Exam

The value of e is a mathematical constant, which has been used in many branches of mathematics and physics for years. … The number e is approximately 2.71828, and is the base of natural logarithms. It is also one of the most important numbers in mathematics. The value of e can be found when taking the so-called “limit definition”.The value of e has many applications in calculus, physics, and engineering. In calculus, it is used to find derivatives and integrals. In physics, it is used to calculate rates of change and decay. In engineering, it is used to calculate vibrational frequencies and energy levels.

In Mathematics, 2.71828182845 and so on is the value of e. If you have carefully noticed, it has been mentioned under the log function also known as the base of the logarithmic function. It looks something like – loge. This mathematical constant is not only used in Mathematics, but it is also applied in Physics. Here are a few values of e when they are raised to a certain power:

• [{e^1}]= e value of e power one (1) or value of e1 will remain e

• [{e^o}]= 1 value of e power zero (0) will remain 1

• [{e^infty }]= 0 value of e power infinity [infty] will remain 0

The value of e is special and when it acts as the base of a logarithmic function, its value is 1 i.e., loge= 1.

Definition of Euler’s number

One of the most popular numbers in mathematics is Euler’s number. This is because it presents an interesting property that allows it to be used in many different areas. It can also be easily obtained using mathematical or physical principles, for example, calculus.

(1+1/n)n is the limit of the Euler’s number. In (1+1/n)n, when the value n addresses infinity, this expression arises while studying compound interest. It’s also represented as the sum of infinite numbers.

[e = sum {_{n = 0}^infty } frac{1}{{n!}} = frac{1}{1} + frac{1}{1} + frac{1}{{1.2}} + frac{1}{{1.2.3}} + …….]

With the value of e, the above equation can be solved. Once it is solved, the resultant will be an irrational number that is usually used in multiple Mathematical calculations and concepts. The value e is named after a great mathematician called Leonhard Euler. 

What is the Value of e?

As mentioned above, Jacob Bernoulli was the mathematician who discovered the value of constant e. The Euler’s constant expression by the sum of infinite numbers can also be expressed in multiple different terms, like:

[e = mathop {lim }limits_{n to infty } {left( {1 + frac{1}{n}} right)^n}]

Hence, this proves that the value (1 + 1/n)n will reach e only when the value of n reaches infinity. To calculate the approximate value, let’s substitute the value of n and calculate the value of e. Let us start with n = 1 and increment the value. 

Value of Exponential Constant

The exponential constant plays a vital role in Maths. In addition to that, it is denoted by the letter “e”. The approximate value of e is 2.718. But, the value of e is much larger than that. MAthematically, the complete value of e can go on for thousands of digits.

e=2.718281828459045235360287471352662497757247093699959574966967627724076630353

How to Calculate the Value of e?

Until now, we studied the value of e and its vital role and importance in Mathematics and other subjects. It is also known as the Euler’s constant, the base of a logarithmic function, etc. To calculate the value of e, you can use the formula or the expression given below: 

[e = sum {_{n = 0}^infty } frac{1}{{n!}} = frac{1}{1} + frac{1}{1} + frac{1}{{1.2}} + frac{1}{{1.2.3}} + frac{1}{{1.2.3.4}} + frac{1}{{1.2.3.4.5}} + frac{1}{{1.2.3.4.5.6}} + ….]

When the above expression is solved, the approx value of the constant e can be found. 

[e = frac{1}{1} + frac{1}{1} + frac{1}{{1.2}} + frac{1}{{1.2.3}} + frac{1}{{1.2.3.4}} + ………………or]

[e = frac{1}{1} + frac{1}{{1!}} + frac{1}{{2!}} + frac{1}{{3!}} + frac{1}{{4!}} + frac{1}{{5!}} + …………….or]

[e = frac{1}{1} + frac{1}{1} + frac{1}{2} + frac{1}{6} + frac{1}{{24}} + frac{1}{{120}} + ………….]

Now, let’s just assume the first few terms . . . .  

[e = frac{1}{1} + frac{1}{1} + frac{1}{2} + frac{1}{6} + frac{1}{{24}} + frac{1}{{120}}]

e = 2.718

 

Hence, the exponential constant value e = 2.72.

The Physical Meaning of Euler’s Number

The most common application is to account for the amount of growth found in almost any evolving population. This is because it can be used as a parameter that allows obtaining an exponential function, which has many real-life applications regarding things like inflation, savings accounts, and simply how much money will accumulate within the years.

The value of e has many applications in calculus, physics, and engineering. In calculus, it is used to find derivatives and integrals. In physics, it is used to calculate rates of change and decay. In engineering, it is used to calculate vibrational frequencies and energy levels.

Conclusion

The most important thing in mathematics is to see the beauty of numbers and develop an appreciation, so when students learn about Euler’s numb
er they can do this without worrying if they will use it in the future or not. For example, a student may simply be able to appreciate the beauty behind Euler’s number and the fact that it is a transcendental number. Furthermore, this number has a lot of interesting applications in different areas, so students should be encouraged to explore these as well. Hence, Euler’s number is definitely one of the most important numbers in mathematics and its study can definitely help students develop a better understanding of mathematics in general.