MAcalc

MACalc

MACalc is a native RPN/Algebraic calculator for iPhone.

A bit of history:
The first MACalc was written last century (1991) for OS/2.
It had scientific, financial, engineering and programmers functions. Several conversion options, plotting capabilities and became widely used in the OS/2 community.
MACalc (with limited capabilities) was ported to Windows, Windows Mobile and Linux and now I decided to write a full blown version for iPhone.

MACalc since it's first version has always been a RPN calculator because I've been using HP calculators since the HP-35 and like the "handling".
For those familiar with HP RPN caculators MACalc tries to mimic the same behavior found on HP calcs.
If you are not used to RPN calculators read (RPN wiki) and (Museum of HP Calculators)

I've received a lot of requests to support algebraic imput mode. Although personally I only use RPN, the latest MACalc version can be used in algebraic mode.

The current iPhone version was "inspired" by the HP16C programer's calcluator that I own and have used for many years. I've also included some scientific functions and conversions.

In future versions I will add more scientific, statistics and finance functions, graphing, programming ....

Some screen shots

Skins

Default Aqwoah (*) iPhone iPhoneColor

(*) created by Reinhold
Penner - visit AlohaSoft

Other

Conversions Settings Settings Skin chooser

Click here for more screen shots (full size)

Click here for new features I am working on

Features

General

Entry-system: RPN or Algebraic
Storage arithmetic: (Sto/Rcl +, -, ×, ÷)
Math: (+, -, ×, ÷, Mod)
Skins: four to choose from

Floating point calculator

FIXed, SCIentific and ENGineering number format
Functions: pi, 1/x, %, factorial
Functions: sq root, root n
Functions: y^x, 10^x, x², e^x
Functions: log, ln, hypotenuse
Trig funtions: sin, cos, tan, hsin ...
Trig modes: degrees, radians, grads
Conversion: polar, retangular
Conversion: degrees, radians, grads

Integer calculator

Signed or unsigned operations
Base conversion (2,10 and 16)
Selectable word size (8bits, 16bits, 32bits)
Bit operations: AND, OR, XOR....

To install

(current version is 0.1.7)

MACalc is available on Installer.app in "Productivity" category. It is hosted by ModMyiFone

You can download MACalc from (here) in zip format
You can download MACalc from (here) in tar gzip format

Unpack
move "MACalc.app" to "/Applications" in the phone
Set the execute bit of "MACalc" ( chmod +x MACalc )
Reboot (or restart SpringBoard)

Usage hints

MACalc has two independent calculators, Integer and Float. To switch from Float to Integer and back "tapp" the display area.
- 10 storage registers
- 10 stack registers
- 10 storage register
- 10 stack registers
Press and hold the Del key for 1 second to "clear X".
Press the Menu > Settings key for settings.
To change mode press Mode.
To change functions press Fn.
Moving the phone to a horizontal position with screen facing down erases all calculator registers and vibrates (if enabled).
Press Mode > Conversions to switch to conversions view.
The current X value will be copied into the "input field".
Pressing Float will return to calculator mode and result will be copied into X.

Simple Arithmetic

To calculate 13 + 2 do:

RPN:

Enter

+

Algebraic:

+

=

To calculate 2 / ( 5 - 1 ) do:

RPN:

Enter

-

÷

Algebraic:

÷

(

-

)

=

Current functions

Integer calculator functions

key function key function key function

And Rotate left Left justify

Or Rotate right Count bits

Xor Rotate left by y ones complement

Not Rotate right by y twos complement

Shift left Shift left by y Mask left

Shift right Shift right by y Mask right

Integer calculator functions
function	function	function
And	Rotate left	Left justify
Or	Rotate right	Count bits
Xor	Rotate left by y	ones complement
Not	Rotate right by y	twos complement
Shift left	Shift left by y	Mask left
Shift right	Shift right by y	Mask right

Float calculator functions

key function key function key function

square sine hyperbolic sine

square root cosine hyperbolic cosine

power tangent hyperbolic tangent

n root to centigrate to retangular

natural exponential arc sine arc sine hyperbolic

natural logarithm arc cosine arc cosine hyperbolic

common exponential arc tangent arc tangent hyperbolic

common logarithm to fahrenheit to polar

factorial integer part to radian

reciprocal fractional part to degree

percent modulo to grad

pi pi hypotenuse

Float calculator functions
function	function	function
square	sine	hyperbolic sine
square root	cosine	hyperbolic cosine
power	tangent	hyperbolic tangent
n root	to centigrate	to retangular
natural exponential	arc sine	arc sine hyperbolic
natural logarithm	arc cosine	arc cosine hyperbolic
common exponential	arc tangent	arc tangent hyperbolic
common logarithm	to fahrenheit	to polar
factorial	integer part	to radian
reciprocal	fractional part	to degree
percent	modulo	to grad
pi	pi	hypotenuse

MACalc was written by Marcio C. Almeida.
As for license it is DIY, you can choose the license that best fits your needs as long as you don't blame me for anything.
If you don't agree with the above don't download.

Changelog:

0.1.7 - added many more conversions
conversions are now plist based
minor bugs fixed
0.1.6 - the "tap area" to move from Integer <> Float is now restricted to the "display area only"
skins can now be added to "/var/root/Library/MACalc/Skins" ("/var/mobile/Library/MACalc/Skins" with FW 1.1.3)
fixed "decimal point" display in Settings
0.1.5 - fixed a change sign problem
0.1.4 - complete rewrite
added more functions
added conversions
added algebraic input mode support
added scientific and engineering notation
added multi skin support
0.0.6 - responsiveness of "Del" and "About" keys for press and hold is much better now.
0.0.5 - LastX was not being saved in some cases
0.0.4 - bug fix - LastX was not pushing currentX into the stack
0.0.3 - config options are now persistent
0.0.2 - added config options (not persistent yet)
added click and error sound (can be disabled)
0.0.0 - first public release

MCA's iPhone home