objectivec  how to convert between signed base 10 numbers and unsigned base 16
By : Tteurs
Date : March 29 2020, 07:55 AM
it should still fix some issue If the base 16 value is a constant or stored in a variable a simple cast will work. code :
long long llint1 = (long long int)0x5d0cfa30041d4348;
long long llint2 = (long long int)0x024025978b5e50d2;
long long llint3 = (long long int)0xfb115bd6d34a8e9f;
NSLog(@"\n%lld\n%lld\n%lld", llint1, llint2, llint3);
unsigned long long tmp;
NSScanner *nscanner = [NSScanner scannerWithString:@"0x5d0cfa30041d4348"];
[nscanner scanHexLongLong:&tmp];
llint1 = (long long int)tmp;
nscanner = [NSScanner scannerWithString:@"0x024025978b5e50d2"];
[nscanner scanHexLongLong:&tmp];
llint2 = (long long int)tmp;
nscanner = [NSScanner scannerWithString:@"0xfb115bd6d34a8e9f"];
[nscanner scanHexLongLong:&tmp];
llint3 = (long long int)tmp;
NSLog(@"\n%lld\n%lld\n%lld", llint1, llint2, llint3);

invalid literal for int() with base 10: '2+2' why wont my program add up the numbers
By : Anyall Register
Date : March 29 2020, 07:55 AM
wish help you to fix your issue You can't just call int('2+2') and get 4; the int() function only converts numbers to integers, but doesn't do arithmetic. To do this, you need to parse the string into a parse tree and do the arithmetic on that. It might be easier to keep track of the input in the form of a tree, rather than a string that you need to turn back into a tree.

How to write a program that will print the first N numbers for a specific base?
By : user3362960
Date : March 29 2020, 07:55 AM
wish help you to fix your issue r = i % bs;finds remainder (which can make sure it is within 0 to 6); q = i / bs; finds how many "7" needs for tenth value. num = q * 10 + r; is to calculate the value in base 7 . this function maybe work until term 489th. if you want to do extra, you may check the , code :
if(i > 489)
{
y = i / (bs*bs);
num = y*100 + q*10 + r;
}

Java  Recursion Program  Convert a base 10 number to any Base
By : bet
Date : March 29 2020, 07:55 AM
hop of those help? I just finished doing this problem for a comp sci class. I had to solve this recursively:

How to convert numbers in Base 2 to Base 4 in R
By : Christopher Fowers
Date : March 29 2020, 07:55 AM
wish help you to fix your issue For instance, how to convert the number '10010000110000011000011111011000' in Base2 to number in Base4 ? , A oneliner approach: code :
> paste(as.numeric(factor(substring(a,seq(1,nchar(a),2),seq(2,nchar(a),2))))1,collapse="")
[1] "2100300120133120"

