I wanted to display a number to 2 decimal places.  I thought I could use toPrecision(2) in JavaScript .  However, if the number is 0.05, I get 0.0500. I'd rather it stay the same.  See it on JSbin.  What is the best way to do this?  I can think...
I am making a webpage that displays the digits of pi. I was able to get my pi variable to display 20 digits of pi using the toFixed method but I am wondering if I can display more. Is the number of decimal places limited by the memory size of my vari...
I heard that you could right-shift a number by .5 instead of using Math.floor(). I decided to check its limits to make sure that it was a suitable replacement, so I checked the following values and got the following results in Google Chrome:   2.5 &g...
I'm new to JavaScript and just discovered toFixed() and toPrecision() to round numbers. However, I can't figure out what the difference between the two is.  What is the difference between number.toFixed() and number.toPrecision()?...
It seems django, or the sqlite database, is storing datetimes with microsecond precision. However when passing a time to javascript the Date object only supports milliseconds:  var stringFromDjango = "2015-08-01 01:24:58.520124+10:00"; var ti...
In javascipt I have av floating point "a" like this:  var a = 5.;   Now I want a new number "b" that is barely larger than "a". I could do this:  var b = a + 1.e-10;   But what if "a" is a really small number?  var a =...
Javascript's toPrecision rounds half up so  (123.46).toPrecision(4)    // 123.5 (123.44).toPrecision(4)    // 123.4   But what is a straightforward method to choose the direction of the rounding (up/ceil or down/floor)? so  (123.46).toPrecisionFl...
When I run, Number(123456789012345.12).toFixed(3), it is returning "123456789012345.125" as a String.  Where is last 5 (in the decimal) coming from?  I would have expected it to return "123456789012345.120".  I executed this code on M...
In JavaScript, the function alert((3*3*Math.sqrt(2))/13) prints 0.9790709277967582, which is only an approximation of the expression's true value. Is there any way to perform arithmetic operations in JavaScript like this one without loss of preci...
I'm struggling to resolve a Floating Point Number issue where var change returns as 0.0999 recurring, and i need to return 0.01 (one penny). The code works fine, except the very last penny, because of this issue. This is my first post here so ple...

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