# Difference between revisions of "83Plus:OS:OS 2.53MP Changes"

From WikiTI

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* n/d - normal fraction, numerator n/d denominator | * n/d - normal fraction, numerator n/d denominator | ||

* >n/d<>Un/D -- swap between improper and proper fractions in MP | * >n/d<>Un/D -- swap between improper and proper fractions in MP | ||

− | * randIntNoRep( -- gives a list of random integers, randIntNoRep(low,high | + | * randIntNoRep( -- gives a list of random integers, with dimension high-low+1 randIntNoRep(low,high |

* remainder( -- essentially modulo, x % y, remainder(x,y | * remainder( -- essentially modulo, x % y, remainder(x,y | ||

* summation <sigma>( -- <sigma>(expression,variable,start,end | * summation <sigma>( -- <sigma>(expression,variable,start,end |

## Revision as of 06:43, 9 February 2010

IMPORTANT NOTE: The 2.53MP is a leaked beta. Please do not distribute it to people by calculator until TI makes the official release, slated for February 15. Use at your own risk.

I have recently realized that there is already an OS versions page. The two will be merged when the official release is made.

## Contents

# Added Features

- In MP, press up to scroll through previous entries, which allows basic copy and paste.

## New Tokens

- AUTO Answer -- basic
- CLASSIC -- basic
- DEC Answer -- basic
- >F<>D -- swap between fraction and decimal
- FRAC Answer -- basic
- logBASE( -- log to any base, logBASE(x,base
- MATHPRINT -- basic
- n/d - normal fraction, numerator n/d denominator
- >n/d<>Un/D -- swap between improper and proper fractions in MP
- randIntNoRep( -- gives a list of random integers, with dimension high-low+1 randIntNoRep(low,high
- remainder( -- essentially modulo, x % y, remainder(x,y
- summation <sigma>( -- <sigma>(expression,variable,start,end
- Un/d -- mixed number, whole Un/d numerator n/d denominator
- ZFrac1/2, EF18 -- delta-x,y = 1/2, graph centered
- ZFrac1/3, EF19 -- delta-x,y = 1/3, graph centered
- ZFrac1/4, EF1A -- delta-x,y = 1/4, graph centered
- ZFrac1/5, EF1B -- delta-x,y = 1/5, graph centered
- ZFrac1/8, EF1C -- delta-x,y = 1/8, graph centered
- ZFrac1/10, EF1D -- delta-x,y = 1/10, graph centered
- ZQuadrant1, EF17
- fraction related tokens
- _, EF2F, not the same as printing _. New font codepoint 0F5h.
- /, EF2E, not the same as division /. New font codepoint 0F6h.
- box, EF1E. New font codepoint 0F7h.

## New Functionality

- New ZOptions under Zoom
- Math Print is TI's own pretty printing
- New menu Alpha+F1-F4 for use with Math Print

## Flags

- 5, (iy+44h) controls math print. You should clear the screen if you change this flag.
- 0, (iy+48h) controls the fraction mode
- bits 1 and 4 of (iy+47h) are related to when the OS decides to format an answer as a fraction
- 4, (iy+45h): set this to disable the message about shortcut menus from Press-to-Test. Not affected by Reset Defaults, though Math Print is.

# Compatibility Issues

- Programs using the homescreen may be very broken. Users should disable Math Print before running them, and programs should clear the screen first thing.
- Programs that encounter an error on the graphscreen may end up with the graphscreen contents in the homescreen buffer
- In Omnicalc, parenthesis assistant does not work properly. (Display error)
- In Omnicalc's entries menu: Using the entries menu without MP symbols has some display issues, and when selecting an entry, it crashes.
- In Omnicalc's entries menu: With mathprint symbols in the entries log, there are serious display issues accompanied with a dramatic crash.
- Omnicalc's partial line clearing (always enabled) crashes or glitches when you try to use it in MP.
- Calcutil will not run at all correctly and will crash your calculator when you turn it off and back on.
- ld a,1 \ ld (appInfo+2),a \ bcall($50CB) no longer unlocks the flash ROM.
- MathPrint Bug : When a list is displayed as a result, you can't take it back for you new entry : selecting it and pressing enter doesn't work

# Known Performance Issues

- Disp and Output may be up to 4x slower than on previous OS version when MathPrint is enabled (see TI-84+ OS v2.53 Leaked)
- When MathPrint is enabled, when you go to the "Y=" menu to type a function, it's displaying slowly the Y1, Y2, Y3, Y4 etc.