@programminginc - страница 783

Anonymous

which is the encoding

Anonymous

then they take that encoding divide it by the maximum value that encoding can be

Anonymous

then take the difference of the range

Anonymous

then they take that encoding divide it by the maximum value that encoding can be

multiply it by this fraction

Anonymous

then add the lowest value it can be

- Raymond

Alright, well you definitely lost me at the end but it's good to know there're ways around that issue

olli

so if you really want to be accurate you have to get limited to 6 for float and 14 for double

if you want to be accurate don't use floating points as defined by IEEE In computing, floating-point arithmetic (FP) is arithmetic using formulaic representation of real numbers as an approximation so as to support a trade-off between range and precision. This is not really a problem with C++ as IEEE defines the behavior to be so and C++ does not enforce vendors to implement IEEEE

olli

You would think that C++ would not have that basic issue but wow. Can't believe this is still an issue in 2018 in C++

The issue is not with C++ rather with the vendors and the CPU's http://eel.is/c++draft/basic.fundamental#8

Anonymous

if you want to be accurate don't use floating points as defined by IEEE In computing, floating-point arithmetic (FP) is arithmetic using formulaic representation of real numbers as an approximation so as to support a trade-off between range and precision. This is not really a problem with C++ as IEEE defines the behavior to be so and C++ does not enforce vendors to implement IEEEE

this formula is the same with doubles

Anonymous

but has more bytes

- Raymond

What am I doing wrong here?

- Raymond

if (InitialBTCTotalUSD < CurrentBTCTotalUSD) { if (CurrentLTCValue > InitialLTCValue) { //You can use multiple cout under each other cout << "Good news" << endl; cout << "You have some USD and LTC profit" << endl; cout << "You can collect them if you sell. Sooooo..." << endl; cout << "Sell! Sell! Sell!" << endl; } else { cout << "None of the conditions are met in both currencies profit" << endl; } } if (InitialBTCTotalUSD > CurrentBTCTotalUSD) { cout << "Buy Buy Buy" << endl; } if (InitialBTCTotalUSD == CurrentBTCTotalUSD) { cout << "Wait Wait Wait" << endl; } else { cout << "None of the conditions are met in both currencies profit" << endl; }

- Raymond

When I run this, I get ELSE function together with first if function

olli

When I run this, I get ELSE function together with first if function

because the else clause belongs to the "closest" if clause. if this is not the case if (InitialBTCTotalUSD == CurrentBTCTotalUSD), then else will be selected

- Raymond

Oh I see!

- Raymond

Awesome. Thank you

olli

you're welcome :)

- Raymond

See they don't teach you these tips and tricks in classes. When I try to enhance anything I learn I find so many things they didn't teach us

olli

if (InitialBTCTotalUSD < CurrentBTCTotalUSD) { if (CurrentLTCValue > InitialLTCValue) { //You can use multiple cout under each other cout << "Good news" << endl; cout << "You have some USD and LTC profit" << endl; cout << "You can collect them if you sell. Sooooo..." << endl; cout << "Sell! Sell! Sell!" << endl; } else { cout << "None of the conditions are met in both currencies profit" << endl; } } if (InitialBTCTotalUSD > CurrentBTCTotalUSD) { cout << "Buy Buy Buy" << endl; } if (InitialBTCTotalUSD == CurrentBTCTotalUSD) { cout << "Wait Wait Wait" << endl; } else { cout << "None of the conditions are met in both currencies profit" << endl; }

BTW if you want to run exactly one of those 4 Blocks use else if for the second and third block .

- Raymond