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Numeric formats are very important thing in Matlab. You need to adjust your numeric format according to your calculation and calculation accuracy. It is not necessary actually in Matlab but if you do this, you will define the standard numeric display and calculation in Matlab. So in this article, we will explain;
First of all we want to explain the use of numeric formats in Matlab. You just need to type the numeric format type that you want to use in your codes as shown by green arrow above. For example, the ‘long’ format is used, and the displayin of a number is as in green box above.
The use of numeric formats in Matlab is like that.
>>format short; The 4 decimal numbers will be shown after the comma such as 4.4125.
>>format long; 15 decimal numbers will be shown after the comma as 15.123654789321456.
>>format show e; 4 decimal numbers will be shown in scientific basis; 8.3333e+001.
>>format long e; 15 decimal numbers will be shown in scientific basis; 8.333333333333333e+001.
>>format short g; 5 numbers will be shown in total such as 44.125.
>>format long g; 15 numbers will be shown in total such as 15.1236547893214.
>>format hex; Hexadecimal format demonstration such as 4054d5555555.
>>format +; Shows the number’s case as +, – or 0.
>>format rational; Shows the number in decimal basis as 500/6.
So these are the formats of the number demonstration in Matlab.
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