<< Chapter < Page Chapter >> Page >
Scripting requires changing baseline of scripting character(s).

Mathematical notation requires scripting around a base entity. The MathML provides scripting capability through scripting elements : msub, msup and msubsup. Scripting in MathML is not limited only to putting a subscript or superscript around an expression, but vertically integrated upper and lower scripts, which are handy to display limits on integrals and to meet such other requirements of rendering structured display.

Rendering of script is done by manipulating certain attributes that elements acquire from the environment such as “xml” or “html” document.

"msub" and "msup" layout scripting elements

Specific attributes :   superscriptshift, superscriptshift

    Attribute value types

  • superscriptshift, superscriptshift (default : automatic) : number v-unit

Each of these scripting elements takes two arguments base and subscript, which may be valid MathML expressions. Syntax of the two elements are as given here :

<msub> base subscript </msub> <msup> base superscript </msup>

Each of these scripting elements takes two arguments base and subscript, which may be valid MathML expressions. Implementation of “msub” element shifts the baseline of the script, while retaining that of the base. In the case of “msup” element, the baseline shifts the script up. In both cases, display style of the scripts are also changed

The amount of shifting can be specified by giving numerical values to “subscriptshift” and “superscriptshift” attributes preferably in "ex" unit. The example here demonstrates implementation of both “msup” and “msub” elements.

Subscript and supersubscipt

<m:math display="block"> <m:table> <m:mtr> <m:mtd> <m:msup> <m:mi> m </m:mi> <m:mrow> <m:mn> 1 </m:mn> <m:mo> &InvisibleComma; </m:mo> <m:mn> 2 </m:mn> </m:mrow> </m:msup> </m:mtd> </m:mtr> <m:mtr> <m:mtd> <m:msub subscriptshift="1.5ex"> <m:mi> m </m:mi> <m:mrow> <m:mn> 1 </m:mn> <m:mo> &InvisibleComma; </m:mo> <m:mn> 2 </m:mn> </m:mrow> </m:msub> </m:mtd> </m:mtr> </m:table> </m:math>

Save the file after editing as “test.xml”. The display looks like :

m 1 2 m 1 2

Observe that “&InvisibleComma;” entity reference impart the meaning that scripts is read one two and not as one multiplied by 2.

"msubsup" layout scripting element

Specific attributes :   subscriptshift superscriptshift

    Attribute value types

  • subscriptshift (default : automatic) : number v-unit
  • superscriptshift (default : automatic) : number v-unit

The element takes three arguments. First argument of the element is base; second argument is subscript; and third argument is superscript. The syntax of the element is :

<msubsup> base subscript superscript </msubsup>

Scripting “msubsup” element affects simultaneous implementation of a subscript and superscript, which are vertically aligned. This is an extremely useful scripting element as this element can be used to display limit values on variety of expression, including an integral sign.

Questions & Answers

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Berger describes sociologists as concerned with
Mueller Reply
Got questions? Join the online conversation and get instant answers!
QuizOver.com Reply

Get the best Algebra and trigonometry course in your pocket!

Source:  OpenStax, A primer in mathml. OpenStax CNX. Apr 19, 2006 Download for free at http://cnx.org/content/col10345/1.16
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'A primer in mathml' conversation and receive update notifications?