Added a dialog to enter MathConstants

Moved current functionality of Save/Load to commentary
New functionality added (out of place here)

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
lege commit

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Merge branch 'master' of https://github.com/Divendo/math-dragon into work

Conflicts:
	src/org/teaminfty/math_dragon/MainActivity.java
Built simple functioning keyboard

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Minor fix

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Merge branch 'master' into work

Conflicts:
	res/values/dimens.xml
	src/org/teaminfty/math_dragon/MainActivity.java

Conflicts fixed
First implement MathConstantView

Factor working, pi/e can go on/off, no powers pi/e yet.


Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Merge branch 'master' into work

Conflicts:
	res/layout/fragment_main_screen.xml
	res/values/dimens.xml
	res/values/strings.xml
	src/org/teaminfty/math_dragon/MainActivity.java
MathVariable now uses the right text size

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Operands of linear binary operations are now handled correctly in the drag-and-drop interface

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Symja is now loaded at startup instead of loading it at the first calculation

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Added wolfram alpha support.
merge conflict fixed
javadocs
javadocs
set right resolutions for wolfram logo
Set the right color for the Wolfram|Alpha icon

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Added the derivative function and sourceview

Signed-off-by: bvanr <henkibrij@hotmail.com>
Fixed some bugs in MathConstantView

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Fixed Wolfram|Alpha bugs.

Did this by giving all operators an appropiate toString method with good
parenthesing. Strings returned by Symja were ambigious to Wolfram|Alpha
in some cases and by building our own query strings we lose this
ambuguity.