Therefore while balancing out expressions, when figures are being compared, the symbol of approximately is used. It is estimation, not the correct amount of time. For example, a person says it will take about half an hour for them to reach home. For such places, this symbol is used to denote estimation. It is not about getting the right answer but about getting an estimation which is good enough for the argument. So, estimation can be defined as the search of finding a digit which is closer to the exact answer. It leads to a stress in getting the real answer. In mathematics, we are sometimes facing situations where we have expressions which are not exact but rather an estimate. Its sum is ( k/2) + ( k/4) + ( k/8) +…( k/2^ n) which is said to be approximately equal to k. It can also be used where the digit is irrational for instance, the digit pie π which is represented in short form of 3.14159.Īnother use includes such expression where the values become larger than expected. It helps in finding no significant deviation. But some of the known digits exist which can be used to represent the actual form. It helps in mathematics to deal with situations and equations where the exact number of digit is quite difficult or not easily obtained. This balances out the overall mathematical expression. It denotes that the values written on left are similar to the values written on right. There are many other values and digits which are required to represent this number but the use of approximation here enables to simplify its representation. So, their equation will be expressed as follows: It is similar or we can say approximately equal to the value of 2.718. For instance, take the example of constant e which is called as the Euler’s number. It is a symbol which is used in mathematics in order to indicate that two equations are similar to each other but not equal. This symbol can also be used when the information is not complete and accurate representation is not available. In other sense, a simpler way to understand it is that when a model is presented instead of an original one which is hard to use, then they are referred to as approximately equal to each other. Often, ≈ symbol is usually used to define digits and numbers but it is also applied to equations in mathematics to define certain functions and shapes etc. However, when it comes to mathematics, it is used for defining values and quantities which are closely related and similar but are not equal to each other. Apart from mathematics, it can be used to define other properties like an image or description. Words like around or roughly are used in the same context as they have similar meaning. The sign for approximately is ≈.Īn abbreviation of this word can also be used in its place which is “approx”. Any word related to it like approximately and approximate (of something) are all used in technical or scientific terms. The word approximation has been taken from the Latin word “approximatus” which means “something which is very close, or near”. ≈An approximate of something is what is logically similar to another thing but it is not equal to it.
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