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I wanna write a c++ program that read a double value and after reading it print only the fraction of that number, for example if the input was 14.25 then the output must be 0.25
should include iomanip to it?
One approach would be to
Round the number down to the nearest integer - you can use the floor() function (http://www.cplusplus.com/reference/cmath/floor/)
Subtract that integer from the original number to get the result
Related
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I am facing a problem. The maximum binary number I am able to convert is 1000000000000000000. Is there any way to convert a binary number larger than this?
There is a function called strtoull (string to unsigned long long integer) which should work, follow the link for an example. https://en.cppreference.com/w/cpp/string/byte/strtoul
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I am trying to generate array of integers within specific limit using random number generator but I want exact same array every time .
Seed your generator with the same seed value every time and it will produce the same sequence of numbers (true for most generators).
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I’m very new in C++ and I need your help. I want to use the input value as a mathematical function then print the result.
What i need is:
When user input: 2 +1 and hit Enter then output (cout>>)
should be your result is: 3 (the sum of 2 + 1)
The mathematical symbol could be + or * or / or -.
Could you please help me with some example?
Thanks in advance!
Search for "Reverse Polish notation" and implementation in C++
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I would like to be able to convert a string such as "(5+6)*6" and get the resulting integer from that equation. It is important that it starts out as a string.
You can use library fastmathparser for c++.
In link is example how use this library.
If you really want write alone this parser, I recomended use Shunting-yard algorithm
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Eg: only allow
< n digit>.<2 digit>
[0-9]{0,}\.[0-9]{2} if you need exactly 2 digit after the dot
[0-9]{0,}(\.[0-9]{1,2}){0,1} if precision can be empty