How to retain two decimal places in c++

The way to preserve two decimal places in C is to specify fixed-point notation using the stream operator fixed. Use setprecision(2) to specify 2 decimal places.

Retaining two decimal places in C

The way to retain two decimal places in C is to use stream operations Symbolsfixedandsetprecision.fixedspecifies the use of fixed point notation,setprecisionspecifies the number of digits after the decimal point.

To preserve two decimal places, use the following code:

cout << fixed << setprecision(2) << myNumber;

wheremyNumberis the floating point number you want to preserve decimal places.

Example:

#include  using namespace std; int main() { double myNumber = 123.4567; cout << "原来的数字：" << myNumber << endl; cout << "保留两位小数：" << fixed << setprecision(2) << myNumber << endl; return 0; }

Output:

原来的数字：123.4567 保留两位小数：123.46

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