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I'd like to be able to write a time string that looks like this: 1:04:02.1 hours using printf.
When I try to write something like this:
printf("%d:%02d:%02.1f hours\n", 1, 4, 2.123456); I get:
1:04:2.1 hours Is it possible to add leading zeros to a float formatting?
294
To format floats without trailing zeros with Python, we can use the rstrip method. We interpolate x into a string and then call rstrip with 0 and '. ' to remove trailing zeroes from the number strings. Therefore, n is 3.14.
The %a formatting specifier is new in C99. It prints the floating-point number in hexadecimal form. This is not something you would use to present numbers to users, but it's very handy for under-the-hood/technical use cases.
We can print the double value using both %f and %lf format specifier because printf treats both float and double are same. So, we can use both %f and %lf to print a double value.
we now see that the format specifier "%. 2f" tells the printf method to print a floating point value (the double, x, in this case) with 2 decimal places.
With the %f format specifier, the "2" is treated as the minimum number of characters altogether, not the number of digits before the decimal dot. Thus you have to replace it with 4 to get two leading digits + the decimal point + one decimal digit.
printf("%d:%02d:%04.1f hours\n", 1, 4, 2.123456); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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