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Computer Programming
A category for questions about computer programming and programming languages.
10,506 Questions
a example of a layer mask would be layers of each background to make one.
Why were input devices invented?
Without input devices, the only way to reprogram computers would be to pull them apart and rewire them. In modern computers with integrated circuits that would be impossible. Input devices, such as keyboards, make it much easier to reprogram computers with new instructions and/or data.
How do you create a shortcut to your CD rom drive on your desktop?
Right-click drag the CD-ROM drive to your desktop. When you release the mouse button a menu will come up. Click on "Create shortcut here".
What is delivery management system software?
Delivery management system software is a technology that helps you to automate the entire delivery workflow. It optimizes your delivery operations in real-time and helps you to easily assign, schedule, execute and monitor tasks. The software allows you to track your driver/agents effectively and offer a robust last-mile delivery service experience to your end customer.
From large-scale enterprises to emerging startups and aggregators, everyone can benefit from delivery management software. Including high-end analytics and intelligent routing facilities, here’s a lowdown to some of its benefits:
- Management costs can be reduced by streamlining processes
- Real-time reports can be considered to take responsive data-driven decisions
- Record-keeping of multiple deliveries is easier by eliminating paper-based records
- Effective coordination and communication can be established between agents/driver and managers
- Automatic task allocation to the driver/agent
- Easy addition of new requests with customizable and powerful admin panel
- Seamlessly manage and configure all the alerts and updates
- An easy-to-use UI for all the stakeholders
Even in this pandemic situation, the right delivery management software can empower your businesses with contactless proof of delivery features and mitigate the risks associated with physical contact.
How are rows and columns named in a spreadsheet?
Rows are number and columns are identified by letters. After Column Z, the next one is AA, then AB, then AC and so on. After AZ you have BA, BB, BC and so on.
How many components of strassen's matrix multiplication?
While Strassen's original algorithm required 18 quadrant additions and 7 quadrant multiplications, for our work we use the Winograd variation which requires the minimum number of quadrant additions, i.e. 15.
The move and copy command accomplish the same task?
COPY leaves the original(s) intact; MOVE does not.
This might come off as an insult... but don't try to make one... just go buy one where you can customize a lot of aspects of the game so you can feel like you made part of it. I tried to make a game, didn't end well.
How do you unlock your acer laptop if you forgot your password?
well, you go to where you bought ur laptop from and then they will tell u what to do
In object-oriented programming (OOP), inheritance is a way to reuse code of existing objects, or to establish a subtype from an existing object, or both, depending upon programming language support.
In classical inheritance where objects are defined by classes, classes can inherit attributes and behavior from pre-existing classes called base classes, superclasses, parent classes or ancestor classes. The resulting classes are known as derived classes, subclasses or child classes.
The relationships of classes through inheritance gives rise to a hierarchy. In prototype-based programming, objects can be defined directly from other objects without the need to define any classes, in which case this feature is called differential inheritance.
The inheritance concept was invented in 1968 for Simula.
Can curd help to low down the level of SGOT and SGPT?
daily use juices and vagitables. And please avoid red meat and smoking and drinking. Daily walks and healthy food. You can control HCV.
Which algorithm is slowest and why?
An algorithm that takes infinite time is the slowest. If the time complexity is O(infinity) then the algorithm may never produce a result. Algorithms with O(infinity) complexity are of no practical use whatsoever, other than to demonstrate how not to write an algorithm.
As an example, consider an algorithm that sorts elements in an illogical manner, such as by shuffling the elements randomly and then testing to see if they are in the correct order. If you can imagine a deck of 52 playing cards you will know how impossible it is to shuffle the cards and get them all in the correct order.
An algorithm doesn't need to have O(infinity) complexity to be considered useless for practical purposes. Bubblesort is a typical example of a useless algorithm. It has an average time complexity of O(n^2) (where n is the number of elements) which is considered reasonable for a small set of data but is impractical for large sets. However, it is not the time complexity that is the problem, it is the sheer number of swapping operations required upon each iteration. Insert sort has the same time complexity but is significantly faster on average because it has no swap operations. Even so, it has no practical uses because, like Bubblesort, it is only suitable for relatively small sets. For practical sorting purpose you need a non-linear algorithm with a time complexity of O(n log n) and, in this respect, hybrid sorts like Introsort win hands-down.
Define non standard data types?
In programming, non-standard data types can be anything; a model for a house, a person, a bank account, a galaxy. They all have in common that they are created through composition of basic built-in data types such as integers, strings or floating point data types.
To define non-standard data types, programming languages typically provide three to four language tools:
Arrays can combine multiple entities of the same basic or non-standard type into as larger new type. When an array is viewed as its own data type rather than a simple accumulation of variables, the whole is more than the sum of its parts: in the C programming language, for example, an array of bytes defines a string or characters.
Structures can combine multiple entities of the same or different data types into one record, from which all record members are accessible at the same time. For example, a student's record might hold the name and date of birth for a single student.
Unions can combine multiple entities of the same or different data types into one record, from which only one record member is accessible at any one time. For example, a union containing the key characteristic of a geometric shape might contain the number of edges of a polygon as an integer number, or a sphere's radius as a floating point variable. The programmer needs an additional method to determine whether this union ought to be interpreted as the edge-count or the radius.
Object-oriented programming languages also support classes. In simple terms, classes are structures which also contain functions, not only data. (Note this is a radical simplification. Classes and object-oriented programming have more to offer than glorified data structures.)
In software programming the repetition of various steps is called?
Repetitive code is usually called a loop. Loops are usually iterative, however recursive loops are also possible.
What is stop and wait ARQ in computer network?
its when the sending device keeps a copy of the last frame transmitted until it receives ACK. Keeping a copy allows the sender to retransmit lost/damaged frames until received correctly.
If the receiver detects error in frame, it discards it and sends no ACK
As you may know, IEEE754 single precision numbers are made of three parts: sign (1-bit), exponent (8-bit) and mantissa (23-bit). For simplicity, let's assume we deal with normalized numbers all the time. The equation is the following: (-1)^(SIGN) * 1.MANTISSA * 2^(EXPONENT-127) Let's do an example. Say we have the following IEEE754 number in binary format: 1 11000000 11011100000101111110111 The sign bit is 1, which means the number is negative. The exponent is 11000000, which converts to 192 in decimal (1x2^7 + 1x2^6). We subtract 127 (this is an offset which is added to allow negative value as well) and we get 65. The mantissa is 11011100000101111110111. When the number is normalized, we have an implicit 1 on the left followed by a point and the number which leads to: 1.11011100000101111110111 This is a fractional binary number and it is converted as follows: 1 x 2^0 +
1 x 2^-1 +
1 x 2^-2 +
0 x 2^-3 +
1 x 2^-4 +
1 x 2^-5 +
1 x 2^-6 +
0 x 2^-7 +
0 x 2^-8 +
0 x 2^-9 +
0 x 2^-10 +
0 x 2^-11 +
1 x 2^-12 +
0 x 2^-13 +
1 x 2^-14 +
1 x 2^-15 +
1 x 2^-16 +
1 x 2^-17 +
1 x 2^-18 +
1 x 2^-19 +
0 x 2^-20 +
1 x 2^-21 +
1 x 2^-22 +
1 x 2^-23 Which is equal to approximately 1.859740138 So now we have -1 * 2^65 * 1.859740138 = -6.86123E19 Here you go! This is very long to do by hand so I suggest you use a converter that supports IEEE754 to speed up conversion. This one is quite good: http://www.binaryconvert.com/convert_float.html
What the purpose of Euphoria programming language?
Euphoria is an easy to learn, powerful and multi-platform language. Benchmarks show it is one of the fastest high-level languages available. It has an active development group. In my opinion it should be a lot more popular, particularly for beginners but also for people who have tricky algorithms to code or complicated data to process. There is no practical limit to the data structures a program can use, with randomly mixed numeric and string values and random grouping (equivalent to arrays, etc) no problem at all.
What is a reason for not using feedback control system?
The main reason for not using feedback control system is that time lag may cause a process deviation near the beginning of a process not to be recognized until the process output. It can result in substantial deviation throughout the entire process, causing an error to continue without adjustment.
Since feedback control systems usually take input from one sensor. there may be better and more direct ways to control a system using multiple sensors.
Operator intervention is usually required when the system is not able to maintain stable closed-loop control.
Feedback control systems do not take predictive control actions for effects of known disturbances.
What type of program is the 203k program?
The 203k Program is a rehabilitation mortgage insurance. What this insurance allows an individual to do is finance the cost of the house plus its cost of renovation in one single mortgage.
What happens if there are duplicate values in the array during a linear search?
Duplicate values have no effect on linear search other than to increase search times. When searching for a value that is duplicated, the index of the first element that matches the given value is returned. If you wish to return all indices that match the given value, you must either search the entire array to build a new array of indices, or sort the array so that all duplicates are allocated contiguously and return the range of indices.
