The built-in Windows computer has developed a lot since its introduction in Windows in 1985. It contains various modes, date calculations and some handy functions for everyday conversions. Here's how to get the most out of your overlooked calculator app:
Switching between computer modes
As you'll see below, the calculator can add, subtract, multiply, and divide a lot more. You can choose between four modes, depending on your needs.
To switch between modes, click the menu button in the upper-left corner, and then select a mode from the following options:
The default mode is appropriate For basic math operations such as adding, subtracting, multiplying and dividing, finding square roots, calculating percentages, and working with fractions. This is probably the mode in which most people will feel comfortable most of the time.
The Scientific mode extends the standard mode and gives you the extra features that you will find on a typical scientific calculator. In addition to the standard mode operators, it includes functions such as log, modulo, exponent, trigonometric and SIN, COS and TAN.
This mode is for programmers. It offers the possibility to switch between different number systems – binary, decimal, hexadecimal and octal. It also adds new operations for working with logic gates – Or, And, Xor and Not – and Bit-Shifting Lsh, Rsh, RoR and RoL.
You can also switch between the options Byte (8-bit), Word (16-bit), DWord (32-bit) and QWord (64-bit) in programming mode and has an option for binary bit switching
Date Calculation Mode
The Date Calculation mode is a handy little tool that lets you calculate the difference between two particular dates. This is perfect to find out how many days old you are or how many days until your next vacation.
You only have to select the start and end dates and the calculator determines the months, weeks
CONNECTION: Performing Date Calculations on Windows Machines
Ever encountered a recipe and it requires milliliters if you want liquid ounces or online shopping, and all prices are in Euros? Well, the calculator has covered you for this and a few more everyday conversions you might encounter. Some other conversions include temperature, speed (mph to km / h, node or mach), weight and mass, and data storage, to name but a few.
Click on the menu button and select a conversion type from the list in the "Converter" section
Click on the first measurement – that will be the input – and select a unit from the list provided.
Click on the second measurement- This will be the output – and select a unit there too.
Now enter your measurement and the calculator will convert it for you. It also shows some other related transformations along the bottom.
Storing Numbers in Memory
If you use certain numbers frequently and you do not want to plug them into the calculator each time, storing these numbers in the calculator's memory will help a lot. It is a very useful feature available in Standard, Scientific and Programmer modes. You control the memory functions with the keys MS, MR, M +, M- and MC.
Here's how they work:
- MS: Save a new number in memory
- MR: Get the number from memory.
- M +: Adds the number in the input field to the last stored number. Can also be used from the memory area if you want to add another number in memory.
- M-: Subtracts the number in the input from the last stored number. Can also be used from the memory area if you want to subtract from another number in memory.
- MC: Clears all numbers from your memory.
- M: Shows all in memory.
Using the MR, M + and M- keys works much like a physical calculator and works with the last stored number. However, you also have access to other numbers that you saved during your current session. To see them, click on the M-button with the down arrow on the far right. You can then click on any number in your store to insert it.
If you always want to leave your memory queue open, resize the window horizontally and it should open, if there is enough space available.
If you need to look at all the calculations you performed in your current session, they are conveniently stored in the computer history. The calculator retains the history even if you change modes, but it will be cleared when you close the calculator app.
There are two ways to access history in the app. First, click the History button in the upper right corner. This will show you the list of recent calculations. Click on any entry in the history display to load it back into the input field of the computer.
If you want to keep the history open, resize the calculator horizontally, and the window should be large enough
Deleting the history
You can use single Delete entries from your history or delete the entire history at once.
To delete a single entry, right-click it and then click Delete. To delete the entire history, click on the small trashcan icon in the lower right corner of the window.
The calculator app has built-in shortcuts to simplify working with hotkeys for the desktop. First, make sure NumLock is enabled if you have a number pad on your keyboard, and then use the pad to do calculations.
You can also use some other shortcuts. You can find a complete list of these shortcuts on the Microsoft Windows Keyboard Shortcuts page, but here are some of the more general useful ones:
- Alt + (1-4): Hold down the Alt key and press any number from one to one four, to switch to the different computer modes.
- Delete: Deletes the current input (works like the CE key on the computer)
- Esc: Clear all inputs (works like the C key on the computer)  Ctrl + H: Switches the history on and off ,
And that's it – probably more than you ever wanted to know about the Windows machine. Nevertheless, it is an underrated tool that contains many useful features.