round double with N significant decimal digits in an overflow-safe manner
195
How to round a number to n decimal places in Java
4861
Can 0.99999999999 be rounded to 1.0 when multiplying?
49194
Given a double, need to find how many digits in total
23459
How can I truncate a double to only two decimal places in Java?
75734
How to make the computer consider two numbers equal up to a certain precision
87731
What is the standard solution in JavaScript for handling big numbers (BigNum)?
102305
How can I round up numbers to the next half-integer?
100768
Handling large numbers in C++?
90290
How can I ensure that a division of integers is always rounded up?
47256
Fixed-size floating point types
13429
Raising a decimal to a power of decimal?
133693
Is it possible to lower the bitwidth of (floating point) numbers?
17933
Truncate Two decimal places without rounding
136470
How do I round a number in JavaScript?
30989
Rounding to nearest 100
2215
How to nicely format floating numbers to string without unnecessary decimal 0's
118255
how do I validate user input as a double in C++?