Mathematical Playground Hack 2.1.2

Screenshots

Game screenshot Mathematical Playground mod apk

Game screenshot Mathematical Playground apk

Game screenshot Mathematical Playground hack

Description

This is an educational tool that is useful for learning or teaching about three dimensional shapes in mathematics. It is recommended to not only students, but also teachers.

This app was previously published as "Mathematical Playground -3D Shapes-".

This app was reviewed to get awarded 5 stars of the EAS Certification!

Please visit our web page.
http://mathematical-playground.exp.jp

--Abstract Features--

• Measuring length of edges, area of faces, distances or angles. Furthermore, you can get a volume of any shape.

• Cutting shapes along a plane which includes three points you specify.

• Expanding a shape by face by face.

• Support for the Multitasking.

• Calculator Gadget

• Handwriting over the screen

• Sharing or printing out screenshots.

• Distributing the shape's data to people over WiFi or Bluetooth.

• Coloring shapes

• Highlighting a plane or an edge

--- This app runs on…

[iPhone]
iPhone 4s or newer.

[iPad]
iPad 2, iPad 3rd generation or newer, iPad mini series, iPad Air series, iPad Pro series.

[iPod touch]
iPod touch (5th generation or newer).

[OS]
iOS9.0 or elder.

Version history

2.1.2

2023-01-02

•Improved visibility of the connect screen to make it easier to use.
•Fixed a bug that sometimes disabled taps after using the calculator.
•It has been made easier to distribute a shape data by improving UI.
•Other minor bug fixes.

2.1.1

2022-03-30

•Fixed the bug that the Draw-Outline switch was not work correctly

2.1.0

2022-03-28

** Fixed Bugs
•Fixed the serious bug that the cut-point won't be updated it's position when the camera angle changed.
•Fixed multiple bugs created in the previous version up.

** New Features / Improvements
•Added the Outline-ON/OFF button that switches the outline displayed / hidden.
•Added the Label-ON/OFF button that switches the labels displayed / hidden.

2.0.10

2021-03-02

Support for iOS14. Now you can share shape-data in iOS14.

Graphics library which this app is using is changed to Metal from OpenGL ES,
by which this app no longer draw outlines while you are changing camera angle / position.

Improved usability of Scene data manager.

Fixed some bugs that results in improving app's stability.

#2.0.9 released on Mar.1 2021 had a problem with shape data sharing. This has been fixed in this release.

2.0.9

2021-02-28

2.0.8

2020-04-21

•Fixed the problem that layout was broken on some device models.
In the previous version upgrade, we made a bug in some part of the app's code.
We apologize for any inconvenience caused.

2.0.6

2020-04-16

* Support for iOS 13.
* Fixed some bugs.

2.0.5

2019-11-18

You can swith overlaying the before-cut-shape on the selected shape by Two-Finger-Tap.

2.0.4

2019-06-02

*We improved app's stability.

2.0.3

2019-05-06

*We add a new shape: Cuboid.
*We implemented a new function: Undo (on cutting a shape)

** Bug Fixes
We fixed a bug that sometimes the app crushes when you cut a shape.

2.0.2

2019-02-25

•We added a sphere (approximation) experimentally.
•Fixed some bugs:
-Sometimes app fails to cut a shape.
-After you cut a shape, some faces are duplicated. So you could not get correct net of the shape.

2.0.1

2018-11-18

We fixed the following bugs:
•Sometimes app fails to cut a shape.
•You cannot select the data you saved.
•App cruches when you drag and drop a scene into a scene folder.
•Problems that cause application being down.

2.0

2018-09-09

•Added approximation of cylinder and cone.
•Adjust the rendering engine
•Cut points hidden in the shadow can not be touched
•Minor bug fixes

1.8.5

2018-06-03

•Fixed the screenshot got incorrect in the menu screen once you open it.
•Fixed some minor bugs.

1.8.4

2018-05-11

We fixed the following bugs:
•Some bugs left in the guidance.
•The guidance of calc-gadget does not start.

1.8.3

2018-04-24

•Bug fix: We fixed some bugs caused by the base-plane is hidden.

1.8.2

2018-03-26

** Regular-octahedron and some options added! **

Added one new shape: regular-octahedron.
Also we added 2 options to:
(1) hide the base-plane that lied under shapes.
(2) disable panning(dragging) touch.
Notice that now you can access options from the work screen.

1.8.1

2018-01-29

In 1.8.1 we improved the handwritten memo function.
· Calculator available
· Fixed the phenomenon that the line flicker after drawing a line
· Added bright red purple color

1.8

2017-12-18

• Support for multitasking environment.
It became possible to work simultaneously with other app such as memo apps, making it easier to create teaching materials or reports.
• The position of the cut point can now be directly adjusted using the Number Pad.
You can do it by tapping the length label displayed by cut points on an edge temporarily.
• Add screenshot share button to work screen or handwriting screen
You can now share screenshots quickly with Air Drop and in a multitasking environment.
• Other, bug fixes

1.7.1

2017-12-04

•Support for iPhone X.
•Bug fixes.

1.7

2017-09-24

[New Features]
•Expansion History: The app stores the order of faces you have expanded, and you can play and reverse play the order of expansion by manipulating the slider.
Note:
If you send the shape data, make sure that the client app's version is 1.7(full ver.) or 1.2(lite Ver.) or later.

[Improved features]
•Support for iOS11.
•Minor improvements.

[Fixed / Improved Bugs]
•Fixed some bugs.

[For iOS8 users]
This app doesn't support for iOS8 from this version.
Please update to the latest iOS as soon as possible.

1.6.1

2017-09-04

[Bug Fix]
Fixed following bug:
•In pre-cutting, there was a case that the remained shape diminishes though you pushed +(plus) button.

1.6

2017-08-28

This app has been renamed because its name is to limited to 30 characters.

[New Features]
•When three cut points are installed, a control panel which can translate the cutting plane can be displayed.

[Improved features]
•Reduced memory consumption.
•Changed app icon.

[Fixed / Improved Bugs]
•Fixed minor bugs.

1.5

2017-08-15

[New Features]
•Scene & Scene Manager:
Scene is like a snap-shot of 3D shapes. You can jump among scenes quickly.
To access or manage scenes, use Scene Manager, which is available from both the Scene Selecting screen and the Workspace screen.

[Improved features]
•The length of an edge was displayed when moving the cut point on it.

[Fixed / Improved Bugs]
•Fixed minor bugs.

1.4.1

2017-07-18

[Improved Features]
We improved the calculator gadget:
• By tapping the result of calculation, we display it in a form including fractions and roots.
• Calculator Gadget: We added new functions: square of sin, cos and tan.
• Calculator Gadget: If your screen size is larger than or equal to 5.5 inch, you can switch the size of number-pad from the option menu, which is in the solid-selecting screen.

[Bug Fix]
We fixed following bugs:
• Calculator Gadget: The calculation results of sinh, cosh and tanh functions were incorrect.
• Hand-Writing Memo: Once you use the \"clear\" or \"undo\", the drawing didn't work correctly.
• Hand-Writing Memo: Instant saving didn't work correctly.
• Other minor bugs.
(We apologize that we made those bugs in the last update.)