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Mac OS X  |  Home / Education  |  Math / Science  |  Calcline  |  erm

Calcline

Calcline

Solve mathematical expressions.

Version:  2.0.1

   [ Views: 677 ]

erm

Feedback Type:  Review

Contributed by: scott929 Wednesday, May 11 2005 @ 01:21 PM PDT

Product Platform: MacOSX

Used Product For: Less than a month

Recommend Product: NO

hangs (pinwheel) any time I tried to use a variable in an expression without a * ex (4y). It should be able to do this calculation without a star.

Can't highlight and copy the results to the clipboard from the small window have to expand.

Good start, but this is not a 1.0 app. This is a beta app and it wouldn't be worth 20$ even if it was fully functional. This is freeware or 5$ material.

For a good robust small freeware app look at MiniCalc, which also adds a calculate function you your services menu to calculate the results of an expression in any cocoa app.

ex (4*cos(2*pi)) = 4 was just calculated in this window using minicalc.   
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Comments

3 comments |

erm - Tension Software

Calcline allows variable name as y4, this is the reason it doesn`t manage y4 as y*4. If you want y*4 you need to enter y*4 and not y4 wich could be a variable name in the variable table. We think this is ok.
We will consider the suggestion to make selectable the result in the small window.
Thank you.

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Thursday, May 12 2005 @ 01:37 AM PDT


erm - scott929

A variable should not be assumed to exist unless it does. 4y or y4 (esp the former) should be interpreted as an expression unless y4 exists as a variable. I know this is a bad example b/c it costs $100 but this is the way Mathematica interprets the input and I think is a good way to do it.

Anyway my point remains... even if it interprets it as a variable it should not hang the program it should print an error message.

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Thursday, May 12 2005 @ 11:19 PM PDT


Bug fixed - Tension Software

Bug are now fixed in version 1.0.2
Still the * operator must be explicit
This is not a bug, just a decision on how Calcline has to work. We will consider later if allow implicit * operator. We think that considering 'x4' as 'x * 4' or as a variable named 'x4' can generate confusion, specially in people with not a strong background in mathematics. Anyway if we receive feedback that this is the right way to go we are open to think again about it.
For now release 1.02 fixes bug in the Calculation engine. Now working in calcline is a lot better. We apologize for the problem in version 1.0.0 . We will add new features in version 1.1 Thank you.

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Monday, May 16 2005 @ 06:28 AM PDT