![]()
|
Usually software calculators imitate hardware calculators. It allows Users the ability to quickly start their work with a new program, since the user already knows how to use their hardware calculator. But with this approach, in regards to the design of software calculators, it inherits all of the defects of hardware calculators. For example:
- Every number, operator, or function that is inputted separately at that priority must be kept in mind. For example, if a calculation is made in ordinary calculator expression 2+2*2 then result is 8, but if 2*2+2 is calculated, then the result is 6. Certainly 2+2*2 and 2*2+2 is equivalent. This is how ordinary calculators provoke errors.
- The window of the program is painted in the form of a device with many unnecessary buttons, and a single indicator for input and output will occupy a lot of "real estate" on the screen.
- You cannot input expressions for calculations as a formula, for example: 123.32-12.4/sin(1/2)
Every number, operator, or function must be entered separately, independent of one another.
Therefore you cannot edit expressions that were previously entered. For example you cannot calculate: 123.32-12.4/sin (1/2) and later 123.32-12.2/sin (1/2) You must enter all of the formula anew because one number is different then the other.
- Painted buttons provoke heavy mouse usage for input, but it will greatly reduce input speed of expressions. This is good for calculating, but it does promote fatigue of hand, due to mouse usage. For the necessary button search, a need is to permanently reread button captions or remember the last button location.
The LibMaster.com Extendable Calculator is a different way to approach calculator design. Therefore it does not contain any of the design defects, as outlined above.

Related products
Deal with all kinds of units conversion;Save you time and improve productivity
TimePuter is a time/date calculator with many related features
Converter pro is a program to convert units in a professional manner.
Hermetic Word Frequency Counter
Counts word frequencies in a file or on the clipboard
Calculate mass and volume of different materials and objects.
Geometric and strength designs of spiral cylindrical torsion springs
Converts dates in various Western calendars and does date arithmetic
Compact and helpful calculator for windows
Download very user friendly Loan Amortizer.
User friendly Windows Util to easily convert between 560 units of measurement.
Related Keywords
Search Here
Sponsor
Categories
MP3 & Audio : Games : Home & Hobby : Desktop : Internet : Graphics : Utilities : Web Development
©2007 Soft45.com all rights reserved.