Plus42 Equations, Preview Release

[level7]

(05-08-2022 08:00 AM)level7 Wrote:  Hi Thomas, first of all congratulations on your achievement and very happy to purchase Plus42 to support your efforts on this and Free42.

• Overall enjoying it so far but the extra rows of buttons makes it a bit less desirable to use on a smaller screen as the buttons are even smaller. Very much looking forward to an iPad app when you get around to it.
• I can't seem to pinpoint but I'm definitely have some stability issues with the application just crashing out at certain circumstances (will try to report if repeatable)
• I did notice that there is now the ability to exit the app with "OFF" which is off by default for Plus42 ... Can we turn this off? In the documentation not sure why this is highlighted under the Plot Viewer.
• Am I nuts or does it seem to provide the opposite sign? For example the integral for Y=X^2, with LLIM=0 and ULIM=1 I'm getting -0.3333 ... In my experimentation I was also getting some weird results with integrals but perhaps that was on me.
  

Kind regards,
S

Hope it's ok to bump my own post here as it fell behind as it was going through new member moderation. Some more irregularities with the integration:

Code:


iPhone SE (1st gen), iOS latest, latest Plus42, New State
iOS latest, latest Plus42

New State

EQN
NEW
Y=X^2 ENTER
EXIT
INTEGRATION
TOP MENU =
TOP MENU CALC
TOP MENU Y
0 LLIM
1 ULIM
TOP MENU INTEGRATION
(result is 0.5??) what does it mean to integrate Y=X^2 with respect to Y
EXIT
EXIT
EXIT
EXIT (main menu)
INTEGRATION
TOP MENU =
TOP MENU CALC
TOP MENU X
TOP MENU INTEGRATION
(result is 0.6638) seems wrong?
EXIT
EXIT
EXIT
EXIT (main menu)
INTEGRATION
TOP MENU =
TOP MENU CALC
TOP MENU Y
TOP MENU INTEGRATION
(result is -0.5) seems different result

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