iReCalc Ver.3.0 is released

iReCalc is an application which has a calculator, memo and database functionalities.

Once you have calculated with it, the figures and the results are kept unless you remove them. You can load these formulas and results whenever you need, and change some part then re-calculate them. You can also store the formulas that you use often to another storage place.

Moreover, you can create and store the formula with some variables like x, y, n1 or n2, and substitute the number then calculate after loading it.

1. All calculations are stored and saved to "Main Table".

2. You can correct the mistakes any time with very easy operation.

3. There is a window that shows the formula vertically, arranging the same digit straight. It makes easier to check the figures when you calculate with a lot of figures like a financial table.

4. You can load the past formula just by tapping it, change some figures and calculate it again.

5. You can store the formulas that you selected to the separate storage place, "Memory Table".

6. Variables can be used. If you create "A×(B-5)÷C" and store it, for example, you can load it any time and calculate it after substituting the figures for A, B and C.

7. You can call the past calculation result and insert it to the current formula.

8. Support Unit Conversion, like Length, Weight, Area, Speed, Temperature, Decimal/Binary/Hexadecimal conversion and so on.

9. Suppor Add-on calculations, which make possible to calculate loan & amortization, depreciation, moving average and so on. You can also load the past Add-on calculation and calculate it again.

10. You can add a title or description on each formulas in Main, Memory and Add-on Tables.

11. Support Consolidation calculation, which calculate among the past calculation results.

12. Support free layout of the calculation keys.

13. Calculation keys are selectable from three size.

14. You can change the following preference settings: calculation key, background color, text color, text size, font, key tap sound, rounding for decimals, sales tax rate, holiday setting, monetary unit for Add-on calc, unit conversion setting, calculation key layout and so on.

15. You can create the files that include above preference settings as many as you want, and change multiple settings simultaneously.

16. You can backup the calculation data to Google Documents, and restore them any time.

The following function is supported as normal calculation:

addition, subtraction, multiplication, division, power, square root, conversion between radian and degree, trigonometric function (sin, cos, tan), inverse function of trigonometric function (asin, acos, atan), hyperbolic function (sinh, cosh, tanh), common logarithm, natural logarithm, exponential function, multiplicative inverse, arithmetic mean, factorial, permutation, combination and sales tax calculation.

There are some lessons to learn the operations of iReCalc. So try taking this first.

And when you get lost, just shake your device. A help window for the current view appears.

Changes and additions

1. Shorter start-up time.

2. Re-calculation method changed.

3. Unit Conversion function added.

4. Help View added.

5. How To Window added.

6. Backup to Google Documents added.

7. Be able to add title and description to the formulas.

8. Selectable calculation key size.

9. Financial Mode added.

Pocket Reader Ver.1.1 is released

Version 1.1

1. Added "Front Cover Size" option

Made front cover of the book resizable.

2. Added "Front Cover Image" option to create custom cover

Now you can select a photo image from your photo albums and set it as the front cover image after cropping it.

For more details, please refer to "Pocket Reader Reference (Ver.1.1)".

Pocket Reader is now on sale

Pocket Reader is an application not to view but to read PDF documents. Because it is made especially for reading PDF files created from scanned book image, there are some special features to read even on small device like iPhone or iPod touch.

For more details, please refer to "Pocket Reader Reference".

NumberPlace Tools is updated

On iOS4, the texts are shown bigger so they do not stay within the windows. Fixed this problem on Ver.1.01, which should be downloadable in this week.

NumberPlace Tools is now on sale

This is an application which have various tools to solve the Number Place puzzles.

Although the Number Place puzzles are intriguing, if you try from intermediate to advanced level puzzles, you have to do a lot of steady work. As a result, not only it takes much time but also you may have mistakes.

NumberPlace Tools makes the user concentrate on solving puzzles while taking care of simple tasks. Also, it helps the user to learn solving the puzzles with assisting functionalities, then he will be able to solve them without assistance.

NumberPlace Tools has many assisting functionalities from elementary to advanced level, including Pencilmarks (tiny digits in a cell), Marks (paint cells in color), Hint, Naked Pairs, X-Wing, Forcing Chains and many others.

It also has a powerful undo functionality. Since you can save undo history on each puzzle, you can keep the process of solving it.

We provide 60 puzzles in 6 levels from elementary to the most advanced. And the user can enter the puzzles from books or internet, then solve them with NumberPlace Tools.

We also provide the lessons for many important solving methods from elementary to advanced. A beginner will be able to solve up to the advanced level puzzles in one day.

The lessons and helps are locally stored, there is no need to access the internet to see them.

Enjoy exercising your brain with NuberPlace Tools on your spare time!

Major functionalities

Pencilmark

Undo

Redo

Hint

Mark

Lock-Mark

Lock

All Lock

All Clear

Candidate Lines

Naked Pairs

Naked Triples

Naked Quads

X-Wing

Forcing Chains

Create New Puzzle

Delete, Save As, Rename, Move Puzzles

Import

Export

Help ( Including the lessons from elementary to the most advanced solving methods )

Functionalities added on iReCalc Ver.2.00

**From Ver.2.03, up to four layers of nested functions are supported. A calculation like √(log(exp(sin1.5))) is possible.

1. The following functions are inserted like as ordinary formula, then enter "=".

log、ln、exp、sin、cos、tan、asin、acos、atan、sinh、cosh、tanh

Example: log5.3 cos(√3) √(exp2+ln3)

2. The following functions are inserted as stated on the buttons.

rad(°): degree to radian, deg(rad): radian to degree

Example: rad50 deg0.87 ( or rad(50) deg(0.87) )

Enter sin(rad50) if it"s used in a trigonometric function

3. The following functions are inserted as each specific formula, then enter each function button.

1/x: After entering x number, tap "1/x".

Σ: Sigma (summation). Enter "start number:end number:formula with k"

Example: 1:10:k^3 = 1^3+2^3+3^3+4^3+.....+10^3

n!: Factorial. 5! means 1×2×3×4×5. After entering n number, tap "n!".

nPr: Permutation. Enter "n:r"

nCr: Combination. Enter "n:r"

4. "5%", "+5%" and "-5%" are sales tax calculation. Although default figure is 5%, you can change it by setting "Tax" on preference view.

In sales tax calculation, although the result is shown on Multi window and Answer window, the formula on Formula window doesn't change. Therefore, you can calculate multiple results without re-entering the formula.

Example: Sales tax for $10 item ( in case of 9.5% sales tax)

Enter 10 and tap "9.5%" -> (10)×0.095 = 0.95

Example: Tax-add price for $10 item ( in case of 9.5% sales tax)

Enter 10 and tap "+9.5%" -> (10)+0.95 = 10.95

Example: Before-tax price for $10(included tax) item ( in case of 9.5% sales tax)

Enter 10 and tap "-9.5%" -> (10)-0.86 = 9.14

5. Window size change

Before Ver.2, for changing window size, you have to use the slider in preference view. From Ver. 2, you can resize the window by swiping it.

First, tap the right half of Answer window and memory copy buttons are shown. During these buttons are shown, the windows are scalable.

When the Vertical window is displayed, you can swipe the window to the left or right. For Horizontal window, swipe to up or down.

If you double tap on the window, you can exchange between Vertical and Horizontal window.

5. Button swap

The number, operator and function buttons are transferable except "Next (Prev)" button.

To do this, use "Swap" button. You can find this button if you tap "Next" on the right side keypad.

Tap "Swap" button and select two buttons as following the message. You can select the buttons by swiping the keypad and changing page by "Next (Prev)".

Since the location of swapped buttons are saved, it is loaded on next execution. Also, if you want to select from different button setting, you can save by creating a new "Preference File" in preference mode. If you create Preference File, you can change settings by tapping "Select" button which is next to "Swap" button.

iReCalc Ver.2.0

Ver.2.00 Enhancement

- Following functions are supported:

π, radian to degree, degree to radian, log, ln, exp, sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, 1/x, Σ, factorial, permutation, combination, sales tax calculation ( tax amount, addition, subtraction )

- Add Function Mode which includes following:

Arithmetic Progression, Geometric Progression, Progressive Calculation, Depreciation ( Straight-Line, Declining-Balance ), Loan ( Mortgage, Equal Principal, Add-on ) & Amortization, Duration ( Time, Days ), Weekday Lookup. ( Planning to add more on version up )

- Made keypad scrollable and added landscape view.

- Made keypad button transferable. You can change most of button location, save original key assignment as a preference file, and switch them easily.

- Renew preference setting view and supports following:

Button Image, Button Title Color, Background, Window Background, Window Text Color, Fractional Digits & Rounding, Font, Sound, Tax, Rounding for Function Mode, Holiday Status, Preference File Edit, Top Bar Color

- Fix the following bug:

When entering substitutes to variables, the program is terminated if recalculation is tried after deleted substitutes with delete button.