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JavaDecimalFormat dcmfmt = new DecimalFormat ("0.00");Double db = 12333.353;System.out.println (Dcmfmt.format (db));JsJava, medium double precision double control retains two decimal places, JS controls two decimal places
1. ScopeThe float and double ranges are determined by the number of digits of the index.The float index has eight digits, while the double index has 11 digits. The distribution is as follows:Float:1bit (symbol bit) 8 bits (index bit) 23 bits (tail
It's always strange why a decimal is added to the pre-defined data type of C #. Isn't float and double enough? I am going to dig it out today.
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Https://www.cnblogs.com/herbert/p/3402245.htmlBasisThe floating-point number is represented by the machine's double-precision (a-bit) of the floating-point number. provides approximately 17 bits of precision and ranges from 308 to 308 of the
Put C # in detail: compromise and trade-offs, deconstruct the decimal operation in C,Digress
Before the beginning of the text, I would like to thank the blog Park for providing this outstanding platform. I am honored to have won the Microsoft MVP
It's been weird. Why is a decimal added to the predefined data types of C #, and is it enough to have float and double? Come and dig a hole today.
Floating-point type
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CTS Type
De script ion
Significant figures
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Transferred from: http://www.cnblogs.com/lovewife/articles/2466543.htmlSingle precision refers to a 4-byte floating-point number, which is the floatA double is a 8-byte floating-point number, which is doubleDecimal is a high precisionFloating point
In the project, you use the truncation method to take two digits after the decimal point, so the following methods are written:
Copy Code code as follows:
Truncates a decimal value by the specified number of decimal places
Decimal
Reason: JS in accordance with the 2 to deal with decimal subtraction, on the basis of arg1 arg2 precision extension or reverse expansion matching, so will appear as follows.
JavaScript (JS) decimal point subtraction problem, is a JS bug such as 0.3*
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