Impressum
SunCalc Android APP
SunCalc (Pro)
The Scientific UNit Calculator App combines the function of a spred
sheet with the functions of a scientific calculator.
A unique feature of this App is the integrated possibility to
convert between expressions given with different units. It does not
only support the simple conversion like Inch to Meter "in:>m"
from one unit to the other like many other unit conversion Apps. It
also supports the conversion of complex units like Inch per hour
into Meter per Second "in/h:>m/s".
Furthermore the conversion between currencies is supported (see
table currencies below for supported currencies). The currencies
conversion rates are loaded from a web service provided by the
EZB
(http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml). If
the availability of new conversions rates is detected, you will be
asked if you want to load them.You can also choose to load it
directly via the menu. The currency exchange rates provided by
the EZB are defined based on the EURO. This App internally
represents all currencies in EURO to. Therefore the conversion of
USD int GBP runs through the steps USD->EURO->GBP.
Besides standard functions (sin, cos, tan, log, ln usw.) of a
calculator, it offers the possibility to clearly arrange your
calculations in a spreadsheet.
The cells of the spreadsheet can also be used to defined your own
functions, units or variables. The data entered in the spred sheet
can be stored in and loaded from CSV files.
The result of your expression is incrementally calculated while you
are typing. The expressions field also supports a undo and redo
function. While typing the calculator will show suggestions for
units and functions, which matches the currently part of the
expression.
Left and right arrow buttons can be used for easily position the
cursor. Missing braces are automatically added at the
beginning/end of your expression. When you press the equal button a
syntax highlighting of the entered expression is performed.
You can access the values of the hardware sensors of your phone. The
calculator offers special function to access them. Some special
spred sheet related functions are also accessible, like sum.You can
use references to other cells in your expression by entering a cell
reference like B3.
It is possible to enter conditional expressions. You can also change
the color of your result field and cells by using severity related
functions.It supports SI base units, SI derived units, SI prefixes,
IEC prefixes and other commonly used units. It also supports the
conversion between these units.
It offers some special editor buttons which are represented red:
Shift (⇧)
Undo (⇑)
Redo (⇓)
Cursor Left (⇐)
Cursor Right (⇒)
Convert Expression (⇛)
Evaluate (=)
The shift button (⇧) will allow to toggle the keyboard between upper
and lower case or will switch the operation shown on operation
buttons. E.g. it will switch the function shown on the sin operation
button to sinh. Pressing the button long will lock it.
It supports unlimited depth calculations with brackets. Missing
closing braces are automatically added at the end of the expression
if needed. This is also true for opening braces, they will also be
added implicitly at the beginning of the expression. So typing
1+2)*3 will be internally converted to (1+2)*3 and the value 9 is
shown.
The calculator provides a matrix of cells (the cells are named
A-T/1-19) to store multiple expressions/definitions/variables or
functions. Pressing the cell button (initial label A1) will switch
to the cell view. You can also navigate to the cell view
by pressing the menu button, views... and than cell. You can also fling
through the different view provided by this app.
In the cell view you can select other cells. If you want to
reference a different cell in your expression this can be done by
making a long press in the cell. You can also type in the cell name
e.g. B2 if you want to reference the content of cell B2.
Pressing the CE button will clear the expression field.
The left (⇐) arrow and right (⇒) arrow buttons can be used to move
the cursor within the current expression. The up (⇑) and down (⇓)
arrow buttons can be used to perform undo or redo operations.
Besides normal calculation operation this calculator offers the
ability to perform conversion between different unit
representations. E.g. to convert a temperature given in
Fahrenheit to Celsius. It is also supports more complex
conversions like 10km/h into 10m/s. Pressing the conversion (⇛)
button will convert the expression on the left side based on the
expression represented on the right side.
Pressing the assignment (=) button will create a formatted
representation of the expression and shows it in the expression
field.
The trigonometric functions can be performed in one of the following
three angular dimensions modes:
RAD (2π)
DEG (360°)
GRAD (400°)
In order to change the degree mode press the menu button and select
"Preferences". Within the preference screen you can select the
degree mode and change it. The preferences screen also allows the
definition, the number of fraction and integer digits. Please
remember that the calculator uses java decimal values for its base
calculation, which have a limited precision.
The calculator supports different views which can be easily changed.
There is a standard keyboard which is structured like common
calculators. There is a second keyboard view (QWERTy) which can be
used to quickly enter the desired units. The third view is the cell
view where all stored values are shown. A fourth view shows all supported units and functions.
In order to change between
these views you can used two mechanisms. Either perform a fling
(right or left) or press the menu button and then select the
"Views..." item. If you are in the cell view, you will have to
perform the fling on the result or expression field.
The calculator support different screen-sizes for mobile cell phones
and tablets. The appropriate layout is chosen for you automatically.
It is also possible to define your own specific constants or
units. By entering DEF("X",2s) or "x"=2s you define the Unit X
which is defined to be 2s. You should use the storage cells
function of this calculator for the definition of a new unit or
constant. After you have defined X you can enter 20s⇛X. You will
get the result 10X.
If you want to refresh a certain calculation or the output of a
sensor periodically, so you can use the refresh function.
Interval: Duration between repetitions (Default 1s)
Repetitions: Number of repetitions which should be performed
(Default unlimited)
The expression gravity() refresh(3) will output the
gravitation every three seconds.
The expression gravity() refresh(4,6) will output the
gravitation every 4 seconds for six times.
If you want to output a sound, you can use the sound(volume,
duration, frequency, [samples}*). This function has the following
arguments:
Volume: 0-1.0 (Default 0.3)
Duration: In seconds. (Default 1s)
Frequency: 1-24.000. (Default 300Hz)
Samples: 0-1.0. The highest frequency decreases with the number of
samples which should be played. Inn case of two samples the
highest frequence is 24.000Hz. In case of four the highest
frequency is 12.000Hz. (Default 1.0,-1.0)
SI base units:
Description Unit
----------------
Meter m
Kilogram kg
Second s
Ampere A
Kelvin K
Candela cd
Mole mol
SI multiples prefix:
Description Unit Value
----------------------
Yotta Y 1024
Zeta Z 1021
Exa E
1018
Peta P 1015
Tera T
1012
Giga G
109
Mega M
106
Kilo k
103
Hekto h 102
Deka da 10
SI fraction prefix:
Description Unit Value
--------------------------
Yokto y 10-24
Zepto z 10-21
Atto a 10-18
Femto f 10-15
Piko p
10-12
Nano n
10-9
Mikro µ 10-6
Milli m 10-3
Zenti c 10-2
Dezi d
10-1
IEC prefix:
Description Unit
Value
-------------------------
Kibi
Ki 210
Mibi
Mi 220
Gibi
Gi 230
Tibi
Ti 240
Exbi
Ei 250
Zebi
Zi 260
Yebi
Yi 270
SI derived units:
Description Unit
Value
--------------------------
Hertz
hz s-1
Radian rad m/m
Steradian sr m2/m2
Newton
N kgm/s2
Pascal Pa
kg/ms2
Joule
J kgm²/s²
Watt
W kgm²/s³
Coulomb C sA
Volt
V kgm²/s³A
Farad
F s4⋅A2/kgm²
Ohm Ω|ohm
kgm²/s³A²
Siemens S
s³A²/kgm²
Weber
Wb kgm2/s²A
Tesla
T kg/s²A
Henry
H kgm²/s²A
°Celsius °C
Lumen
lm cd
Lux
lx cd/m²
Becquerel Bq s-1
Gray
Gy m²/s²
Siever Sv
m²/s²
Katal kat
mol/s
Oersted Oe
79.57747A/m
Stilb
sb 10000 cd/m²
Phot
px 10000 lx
Time:
Description Unit Value
-----------------------
Minute min 60s
Hour h
3600s
Day
d 86400s
Temperatures:
Description Unit
----------------
Fahrenheit °F
Rankine °Ra
Rømer °Rø
Réaumur °R
Delisle °De
Binary:
Description Unit
------------------
Byte B|byte
Bit b
Commonly used binary constructs:
Common used Unit
SI-Representation
----------------------------------
Kbit
Kibit
Mbit
Mibit
Gbit
Gibit
Tbit
Tibit
Ebit
Eibit
Ybit
Yibit
Zbit
Zibit
KB|Kbyte KiB
MB|Mbyte MiB
GB|Gbyte GiB
TB|Tbyte TiB
EB|Ebyte EiB
YB|Ybyte YiB
ZB|Zbyte ZiB
Other commonly used units:
Descr.
Unit Value
--------------------------------
Stokes stoke
m²/s10000
Foot ft
0.3048m
Inch in
1ft/12
Mile mile|mi 5280ft
Nautical nmi 1852m
Mile
Milli milli-inch 0.001in
Inch
Yard yd
3ft
Micron micron 0.000001m
Parsec pc
3.085678E16m
Astronom. ua|au|AU 149597871m
Unit
Angstrom Ang 10-10m
Point pt
1/72in
Pica pica
1/6in
Pound lbm
453.59237g
Carat carat 0.2g
Gravity G
9.80665m/s²
Light c
299792458m/s
Speed
Pound lb
lbmG
Force
Calorie cal
4.1868J
Kilo Cal
1000cal
Calorie
Electron eV
1.602177 10-19J
Volt
Horse hp|PS
735.49875W
Power
Bar bar
N/m²
Pascal Pa
N/m²
Atmosph. atm
1.01325E5N/m²
Liter L
0.001m³
Pint dpint
0.5506105L
Quart dgt
2dpint
Acre acre
4046.8m²
Hectare ha
1000m²
Barrel barrel 158.9873L
Peck pk
8.809768L
oz Ounce
28.349523125g
yd Yard
0.9144m
PI π
3.141592...
E e
2.718281...
The following trigonometric functions are supported:
Description
Expression
-------------------------------
Sinus
sin
Cosinus
cos
Tanges
tan
Sinus hyperbolicus sinh
Cosinus hyperbolicus cosh
Tanges hyperbolicus tanh
Arcus sinus asin
Arcus cosinus acos
Arcus tanges atan
Arithmetic Functions:
Description
Expression
---------------------------------
Radic
√
Power
^|↑
Division
/
Multiplication *
Addition
+
Subtraction -
Logarithm to base x logx
Natural logarithm ln
Logarithm to base 2 lb
Logarithm to base 10 lg
Spreadsheet related Functions:
Description
Expression
---------------------------------
Sum
SUM(<CELL-REF>:<CELL-REF>)
Constant/Unit
DEF("<NAME>",<Value>)
Definition
Average
AVG(<CELL-REF>:<CELL-REF>)
Maximum
MAX(<CELL-REF>:<CELL-REF>)
Minimum
MIN(<CELL-REF>:<CELL-REF>)
Condition
IF(<Condition>,<Then>,<Else>)
Functions to change the Color:
Description
Expression
---------------------------------
Red/Critical
CRITICAL()
Orange/Major
MAJOR()
Yellow/Minor
MINOR()
Blue/Warning
WARNING()
Green/Normal
NORMAL()
Hardware Sensor related
functions:
Description
Expression
---------------------------------
Temperature
temperature()
Ambient Temperature ambient_temperature()
Pressure
pressure()
Light
light()
Gyroscope
gyroscope()
Gyroscope-X-Axis
GyroscopeAxis
GyroscopeAxis
Magnetic Field
magnetic()
Magnetic Field-X-Axis
Magnetic Field-Y-Axis
Magnetic Field-Z-Axis
Accelerometer
Accelerometer-X-Axis
Accelerometer-Y-Axis
Accelerometer-Z-Axis
Gravity
gravity()
Gravity-X-Axis
Gravity-Y-Axis
Gravity-Z-Axis
Lin.-Accelerometer
Lin.-Accelerometer-X-Axis
Lin.-Accelerometer-Y-Axis
Lin.-Accelerometer-Z-Axis
Miscellaneous Functions
Description
Expression
-----------------------------------------------------------------------------------
Sound generation
sound(volume, duration, frequency,[smaples])
Refresh
refresh(Seconds, repetitions)
Currencies
-------------
USD, JPY, BGN, CZK, DKK, GBP, HUF, LTL, LVL, PLN, RON, SEK, CHF,
NOK, HRK, RUB, TRY, AUD, BRL, CAD, CNY, HKD, IDR, ILS, INR, KRW,
MXN, MYR, NZD, PHP, SGD, THB, ZAR