Speedcrunch is a portable desktop calculator which is absolutely free to use.
FEATURES
At your fingertip
Unlike traditional desktop calculator, SpeedCrunch is easier to use. You just
type the expression that you want to calculate and press Enter. You can see clearly what you typed along with the result in the scrollable display. That is faster and more convenient, isn't it?
You can also paste the expression from the clipboard, that you copied from somewhere else. And, you can quickly copy the last calculation result to the clipboard using Ctrl+R.
Unlimited variables
Advanced calculation sometimes needs memory feature. SpeedCrunch allows variables to hold calculation result, e.g. x = 0.3 which can be reused in y = 2*x. Variables need not only a character, InterestRate is a perfect name as well. And still, you can define as many variables as you want.
Syntax highlighting
Do you close your parentheses correctly? Mistype the number? No need to worry again because SpeedCrunch can always color the expression according to the syntax.
Functions, with automatic completion
Beside standard algebraic operator like + (addition), - (subtraction), * (multiplication), / (division), ^ or ** (exponentiation), there is support for some functions, for example sin, log, abs, and many more.
50 decimals at your disposal
With its unique calculation routines, you can get up to 50 decimals of precision. Normally, all the important digits are shown, but you can also ask SpeedCrunch to round it to several digits.
History repeats itself
If you want to recall again the expression which you typed before, then press up and down arrow to access the expression history.
Moreover, your expression history (maximum last 100 expressions) is saved between sessions. This means you can still invoke those calculations you have done yesterday or last week.
Smart correction
Often, SpeedCrunch can still understand an incomplete expression. For example, just typing sin followed by Enter - likely means taking the sine of last value - is automatically translated as sin(ans).
Keyboard-friendly
SpeedCrunch has many keyboard shortcuts to speed up your task:
Up/Down recall last expression
Ctrl+I insert variable
Ctrl+F insert function
Ctrl+R copy last result to clipboard
Ctrl+S save current session to text file
F9 radians mode for trigonometric functions
F10 degrees mode for trigonometric functions
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