set double = 0.1 in java, and then print it out, which is still 0.1. However, according to the binary floating-point number representation, it should not accurately represent 0.1, but can only accurately represent numbers such as 0.5 and 0.25. I want ...
In the Coursera algorithm class, there is a material (FAQ s eighth question) that mentions that floating point numbers can be directly compared in this course project. The specific situation is as follows: enter integers a and b in the range of ...
it is a bit confusing to see that the 23-bit Mantissa determines that the single-precision floating-point decimal precision is 7 digits. The 23-bit binary can only show that the M of the binary Mantissa 1.M can represent 2 ^ 23 digits. How can it be ...
1. One is to receive it with props under "datas ". 2. One is to pass down the method of accessing the child component directly in the parent component, this.$refs.child.show (datas) which of the above is better? I use 1, and often the request is pas...
this is the parent component of the form which introduces two child components there are many formItem in each child component. can be authenticated if it is written directly in the form without the use of subcomponents. the question now is: how can...
I took a look at the payment bar codes of Alipay and Wechat. They are both in the format of 4-4-4-6 (the first two bits remain unchanged) and can be generated offline. They should be time-stamped and then encrypted. Is there any algorithm for writing enc...
I wrote a common bottom component bottom.vue in vue. after looking at the official website for other forms, I did not find the reference file pattern. How to call it in this case? ...
the virtual environment is created by pycharm. After entering venv script activate.bat on the command line, the display enters the virtual environment, and (venv) appears. However, typing pip-V shows c: users yglin appdata local program...