Table of Contents

## How do you set the precision of a double?

How to set Precision for Double values in Java? Given a double value val, the task is to set its precision value to a specific decimal places. We can use String. format() method to format the decimal number to some specific format.

**Do I need double precision?**

Some special scientific applications might require double precision for two reasons – the range of the data is larger than a single precision can hold or there is a need to have the extra decimal places to avoid numerical errors.

**What is double precision floating point used for?**

Double-precision floating-point format (sometimes called FP64 or float64) is a computer number format, usually occupying 64 bits in computer memory; it represents a wide dynamic range of numeric values by using a floating radix point.

### How do you convert a double precision floating point into a decimal?

The steps to converting a double to a decimal real number are:

- Separate the number into three components: the sign bit (1), the exponent (11), and the mantissa (52).
- Subtract 011111111112 (= 1023) from the exponent.
- Append the mantissa to a leading 1.

**What is the maximum value of a double precision floating point number?**

Range of Floating-Point Types

Type | Minimum value | Maximum value |
---|---|---|

float | 1.175494351 E – 38 | 3.402823466 E + 38 |

double | 2.2250738585072014 E – 308 | 1.7976931348623158 E + 308 |

**What is NaN in IEEE standard?**

In the IEEE 754-2008 standard (referred to as IEEE 754 henceforth), NaN (or “not a number”) is a symbolic floating-point representation which is neither a signed infinity nor a finite number.

#### What is the size of mantissa in double precision representation of floating point number?

Double precision has mantissa length l = 53 and exponent range [− 1022.. 1023]. Hence the relative errors are bounded by 2− 24 and 2− 53. The single and double precision formats usually correspond to the number types float and double in C++.

**What is the value of N or count in multiplication of 110 * 1000?**

What is the value of n in multiplication of 110* 1000? Explanation: In Booth’s, n denotes the number of bits that the higher binary number has when multiplication is performed. Here, since there are 4 bits in 1000, the answer is n=4.

**What is the value of binary number 101?**

Binary to Decimal conversion table

Binary Number | Decimal Number |
---|---|

100 | 4 |

101 | 5 |

110 | 6 |

111 | 7 |

## Why is a demultiplexer called a data distributor?

Why is a demultiplexer called a data distributor? Explanation: A demultiplexer sends a single input to multiple outputs, depending on the select lines. For one input, the demultiplexer gives several outputs. That is why it is called a data distributor.

**How do you do 1’s complement?**

To get 1’s complement of a binary number, simply invert the given number. For example, 1’s complement of binary number 110010 is 001101. To get 2’s complement of binary number is 1’s complement of given number plus 1 to the least significant bit (LSB)….One’s Complement.

Binary number | 1’s complement |
---|---|

111 | 000 |

**What is 2’s complement with example?**

To get 2’s complement of binary number is 1’s complement of given number plus 1 to the least significant bit (LSB). For example 2’s complement of binary number 10010 is (01101) + 1 = 01110….2’s Complement of a Binary Number.

Binary number | 1’s complement | 2’s complement |
---|---|---|

101 | 010 | 011 |

110 | 001 | 010 |

111 | 000 | 001 |

### Why do we use 1s and 2s complement?

1’s complement is simply a Bitwise NOT gate, i.e. 1011 becomes 0100. 2’s complements is the most commonly used to representation of signed integers because it obeys the rules of addition and subtraction.

**What is 1’s complement for decimal 9 and 6?**

9’s Complement in Decimal Number System 9-6 = 3, 99-27 = 72, 999-234 = 765, 999-672 = 327, thus 3, 72, 234, 672 are the 9’s complement of the numbers described above.

**How do you find the 10 complement of a decimal?**

10’s complement of a decimal number can be found by adding 1 to the 9’s complement of that decimal number. It is just like 2s compliment in binary number representation. For example, let us take a decimal number 456, 9’s complement of this number will be 999-456 which will be 543. Now 10s compliment will be 543+1=544.

#### How do you solve 9 complement?

The 9’s complement of a number is calculated by subtracting each digit of the number by 9. For example, suppose we have a number 1423, and we want to find the 9’s complement of the number. For this, we subtract each digit of the number 1423 by 9. So, the 9’s complement of the number 1423 is 9999-1423= 8576.

**What is 7’s complement?**

The 7’s complement of an octal number is obtained by subtracting each digit from 7. The 1’s complement of a binary integer is obtained by subtracting each digit from 1.

**How do you find the complement of a number?**

Steps to find (b-1)’s complement: To find (b-1)’s complement,

- Subtract each digit of the number from the largest number in the number system with base .
- For example, if the number is a three-digit number in base 9, then subtract the number from 888 as 8 is the largest number in base 9 number system.