How to write negative binary number?

How to write negative binary number?

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How to write negative binary number?
Tag : javascript , By : changke
Date : January 12 2021, 01:40 AM

Hope that helps So 0b1 is 1. How to write -1 in binary format? , try
let a = -0b1;


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How to know if a binary integral number represents a negative number?

Tag : c , By : cnemelka
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , It depends on the representation, of course. In two's complement, which is widely used, you simply look at the most significant bit.

Concatenating a negative number to binary number

Tag : c , By : Kristian Hofslaeter
Date : March 29 2020, 07:55 AM
hope this fix your issue -7 is probably a 32-bit negative number - that is, 0xfffffff9. You need to mask it if you only want to use 9 bits:
num = (num << 9) | (-7 & 0x1ff)

Binary Multiplication - Negative number X Negative number

Tag : math , By : Moe Skeeto
Date : March 29 2020, 07:55 AM
With these it helps Negative integers are usually stored in 2's complement representation, which means that as an m-bit number -x is stored as 2m-x. This is where the name two's complement comes from: adding x results in a complete power of two.
Assuming we use 32 bits, -3 is stored as 232-3 = 4294967293.
11111111111111111111111111111101×11111111111111111111111111111101 =
        (32 msb)                         (32 lsb)

convert negative decimal number to binary number

Tag : c , By : Mahesh
Date : March 29 2020, 07:55 AM
this will help decimal and int b[s] not initialized.
By not initializing decimal to 0, it might have the value of 0 on a machine one day and quite different results otherwise.
void decTobin(int dec, int s) {
  //  while loop does not set all `b`,but following for loop uses all `b`
  // int b[s], i = 0;  
  int b[s] = { 0 }; // or int b[s]; memset(b, 0, sizeof b);
  int i = 0; 

void ndecTobin(int dec, int s) {
  int b[s], i = 0, a[s], decimal, decimalvalue = 0, g;
  decimal = 0;
  decimal += decimalvalue;
void decTobin(unsigned number, unsigned width) {
  int digit[width];
  for (unsigned i = width; i-- > 0; ) {
    digit[i] = number % 2;
    number /= 2;

  printf("%u ", number);  // assume this is for debug

  for (unsigned i = 0; i<width; i++) {
    printf("%u", digit[i]);

How to know if it is either a positive/negative number or it is referring to a number in binary?

Tag : development , By : Blight
Date : March 29 2020, 07:55 AM
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