I am facing the challenge described in this particular query. In most cases, my code works fine to round numbers to two decimal places with the following formula:
Math.round(num * 100) / 100
However, there was a peculiar scenario where it failed. When trying to round the number 1.275, the expected result was 1.28, but it ended up being rounded to 1.27 instead. The reason behind this discrepancy is that num * 100 resulted in 127.49999999999999 instead of the expected 127.5.
What is the cause of this behavior and is there a solution to address it?
EDIT
Although the provided question may be related to the root cause of my issue, the solutions mentioned in the accepted answer do not seem to work in my case. My goal is to display a correctly rounded number. Essentially, I am attempting to implement the instructions mentioned in that question (refer below), but I am unable to achieve the desired outcome.
If you simply want to avoid displaying excessive decimal places: ensure that you format your rounded result to a specific number of decimal places when presenting it.