OpalCalc download

v1.7 [Jun 23, 2014]
- Very small numbers combined with measurement units were previously scrambled when referenced. Example: Something like "0.00001 miles" would produce an error or incorrect figure when used in a future calculation (referenced as a variable, answer, total etc.). This awful bug has now been fixed for good.
- Sums such as "5/4cm" will now result in "1.25 cm" rather than "1.25 /cm". The latter is more technically correct as the sum was originally treated as "5/(4cm)", but it is now treated as "(5/4)cm" which is how most people will interpret it. If you're ever unsure, always use brackets to be on the safe side.
- You can now log sheets to disk upon closing of Opalcalc. Useful for storing all past calcs automatically. To open the text log file, go to Options (window) -> "Open user path" (button) -> "calc-log.txt" (file).
- Single parameter functions by themself on a line will calculate the answer to the previous sum automatically. For example "9", followed by "sqrt" on the next line will result in 3 without having to type "sqrt(ans)".
- In the "Custom Notation options" window, GUI elements are now automatically disabled/enabled according to what's relevant.
- The buttons "Open prog path" and "Open user path" and have been added to the Options window. The latter is omitted in the portable version as they both equal the same folder.

v1.6 [Jan 30, 2013]
The portable versions of OpalCalc wouldn't extract properly under certain programs. This should be fixed now.
In version approx 1.30 and earlier, functions could use constants such as pi and global variables (providing they don't clash with the parameter variables). This functionality has now been restored for good.