I’m trying to add a little space between lines to my TextViews using android:lineSpacingMultiplier from the documentation: Extra spacing between lines of text, as a multiplier. Must be a floating point value, such as “1.2”. As I’m using this in a few different TextViews I would like to add a global dimension/value to my resources, … Read more
What is the biggest “no-floating” integer that can be stored in an IEEE 754 double type without losing precision ? 8 Answers 8
I’ve looked up what this does, but does anyone actually have an example of when you would use the strictfp keyword in Java? Has anyone actually found a use for this? Would there be any side-effects of just putting it on all my floating point operations? 11 Answers 11
When comparing floats to integers, some pairs of values take much longer to be evaluated than other values of a similar magnitude. For example: >>> import timeit >>> timeit.timeit(“562949953420000.7 < 562949953421000”) # run 1 million times 0.5387085462592742 But if the float or integer is made smaller or larger by a certain amount, the comparison runs … Read more
The following code is obviously wrong. What’s the problem? i <- 0.1 i <- i + 0.05 i ## [1] 0.15 if(i==0.15) cat(“i equals 0.15”) else cat(“i does not equal 0.15”) ## i does not equal 0.15 6 Answers 6
For example: 9 / 5 #=> 1 but I expected 1.8. How can I get the correct decimal (non-integer) result? Why is it returning 1 at all? 7 Answers 7
I am trying to divide two image widths in a Bash script, but bash gives me 0 as the result: RESULT=$(($IMG_WIDTH/$IMG2_WIDTH)) I did study the Bash guide and I know I should use bc, in all examples in internet they use bc. In echo I tried to put the same thing in my SCALE but … Read more
I am trying to parse two values from a datagrid. The fields are numeric, and when they have a comma (ex. 554,20), I can’t get the numbers after the comma. I’ve tried parseInt and parseFloat. How can I do this? 9 Answers 9
I have the value 25.00 in a float, but when I print it on screen it is 25.0000000. How can I display the value with only two decimal places? 13 Answers 13
It is well-known that NaNs propagate in arithmetic, but I couldn’t find any demonstrations, so I wrote a small test: #include <limits> #include <cstdio> int main(int argc, char* argv[]) { float qNaN = std::numeric_limits<float>::quiet_NaN(); float neg = -qNaN; float sub1 = 6.0f – qNaN; float sub2 = qNaN – 6.0f; float sub3 = qNaN – … Read more
