Android – Round to 2 decimal places [duplicate]
You can use String.format(“%.2f”, d), your double will be rounded automatically.
You can use String.format(“%.2f”, d), your double will be rounded automatically.
5.55 % 1 Keep in mind this won’t help you with floating point rounding problems. I.e., you may get: 0.550000000001 Or otherwise a little off the 0.55 you are expecting.
You might want to look at the DecimalFormat class; it supports different locales (eg: in some countries that would get formatted as 1.000.500.000,57 instead). You also need to convert that string into a number, this can be done with: double amount = Double.parseDouble(number); Code sample: String number = “1000500000.574”; double amount = Double.parseDouble(number); DecimalFormat formatter … Read more
Try this SELECT CONVERT(DECIMAL(10,2),YOURCOLUMN) such as SELECT CONVERT(DECIMAL(10,2),2.999999) will result in output 3.00
When formatting number to 2 decimal places you have two options TRUNCATE and ROUND. You are looking for TRUNCATE function. Examples: Without rounding: TRUNCATE(0.166, 2) — will be evaluated to 0.16 TRUNCATE(0.164, 2) — will be evaluated to 0.16 docs: http://www.w3resource.com/mysql/mathematical-functions/mysql-truncate-function.php With rounding: ROUND(0.166, 2) — will be evaluated to 0.17 ROUND(0.164, 2) — will … Read more
all numbers are stored in binary. if you want a textual representation of a given number in binary, use bin(i) >>> bin(10) ‘0b1010’ >>> 0b1010 10
$num + 0 does the trick. echo 125.00 + 0; // 125 echo ‘125.00’ + 0; // 125 echo 966.70 + 0; // 966.7 Internally, this is equivalent to casting to float with (float)$num or floatval($num) but I find it simpler.
Use <iomanip>‘s std::hex. If you print, just send it to std::cout, if not, then use std::stringstream std::stringstream stream; stream << std::hex << your_int; std::string result( stream.str() ); You can prepend the first << with << “0x” or whatever you like if you wish. Other manips of interest are std::oct (octal) and std::dec (back to decimal). … Read more
The parameter has this syntax: {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits} So your example of ‘1.2-2’ means: A minimum of 1 digit will be shown before decimal point It will show at least 2 digits after decimal point But not more than 2 digits
You can either use: [x / 10.0 for x in range(5, 50, 15)] or use lambda / map: map(lambda x: x/10.0, range(5, 50, 15))