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Why toFixed() rounding is so strange [duplicate]
(1 answer)
Is floating point math broken?
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Javascript toFixed Not Rounding
(23 answers)
Rounding in Javascript toFixed() method [duplicate]
(2 answers)
Closed 3 years ago.
I was breaking my head debugging the rounding in some application and it boiled down to this:
(1.445).toFixed(2) // rounding as expected = 1.45
"1.45"
(85.485).toFixed(2) // what??? should be 85.49!
"85.48"
The number itself 85.485 can be displayed as such, so it doesn't seem a power of 2 float problem...
Any Idea why this is happening?
Related
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Extremely large numbers in javascript
(5 answers)
Alternative to Math.max and Math.min for BigInt type in Javascript
(2 answers)
Closed 9 months ago.
I created a component to calculate the power of numbers
but the problem is Number.MAX_SAFE_INTEGER.
how can I calculate a larger number like 5^200 in my app completely without rounding?
Math.pow(5,200) // it loged `infinity`
This question already has answers here:
Is floating point math broken?
(31 answers)
How to deal with floating point number precision in JavaScript?
(47 answers)
Closed 3 years ago.
We are facing some rounding issues in my team, and when testing some behavior we saw this in Chrome's console:
15*0.023
0.345
15*1.023
15.344999999999999
I'm not able to understand what is going on. Any help?
This question already has answers here:
How to deal with floating point number precision in JavaScript?
(47 answers)
Is it possible to achieve arbitrary-precision arithmetic with no rounding issues in JavaScript?
(1 answer)
javascript - More accurate value of Pi? [duplicate]
(2 answers)
Closed 4 years ago.
I'm trying to do some floating number calculation with javascript that requires high accuracy
when I tried to initiate a variable like this:
const pi = 3.141592653589793238462643383280
System will truncate number to
>pi
>3.141592653589793
How can I do calculating with long decimal digits? thanks!
You can use a library like say for example http://mikemcl.github.io/decimal.js/
This question already has answers here:
Parse Float has a rounding limit? How can I fix this?
(3 answers)
How to parse 20 digit number using JavaScript and jQuery
(3 answers)
Closed 2 years ago.
I want to convert a number having 20 precision and 2 scale value using parseFloat() function, but when the value of integer part and fractional part exceeds to 14 and 3 respectively (eg. 55555555555555.33552), its not working properly.
Can anyone tell me the reason behind this or correct me if I am wrong.
Thank you.
This question already has answers here:
Why does floating-point arithmetic not give exact results when adding decimal fractions?
(31 answers)
Closed 7 years ago.
If you put this in the browser address bar (firefox/IE8):
javascript:alert(40.34+56.87)
Why the result comes as 97.2100000000001
when its supposed to be 97.21
javascript:alert((40.34+56.87).toFixed(2))