From: Robert Miner <robertm@dessci.com>

Date: Tue, 15 May 2007 09:26:08 -0700

Message-ID: <D1EFB337111B674B8F1BE155B01C6DD601DBF5DB@franklin.corp.dessci>

To: "Shweta S R" <shweta.sr@sonata-software.com>

Cc: <www-math@w3.org>

Date: Tue, 15 May 2007 09:26:08 -0700

Message-ID: <D1EFB337111B674B8F1BE155B01C6DD601DBF5DB@franklin.corp.dessci>

To: "Shweta S R" <shweta.sr@sonata-software.com>

Cc: <www-math@w3.org>

Hi. I see the problem. The sin and cos functions in the MathML schema are not hooked up to a calculation engine in XSL processors. They could be, of course, but they aren't part of XPath and no XSL processors I know of extend XPath with mathematical functions such as sin and cos. More formally, the XSL spec says that the value of the select attribute on a <xsl:valueof> element must be an XPath Expr, and XPath only has a very limited list of functions that can be applied to numbers, e.g. round, mod, basic arithmetic, etc. Depending on the accuracy you need, you could approximate sin and cos with a few terms of their power series. The basic arithmetic in XPath is sufficient to calculate those approximations. --Robert Robert Miner Director, New Product Development w3C Math WG co-chair Design Science, Inc. 140 Pine Avenue, 4th Floor Long Beach, California 90802 USA Tel: (651) 223-2883 Fax: (651) 292-0014 robertm@dessci.com www.dessci.com ~ Makers of MathType, MathFlow, MathPlayer, WebEQ, Equation Editor, TexAide ~ > -----Original Message----- > From: Shweta S R [mailto:shweta.sr@sonata-software.com] > Sent: Tuesday, May 15, 2007 1:26 AM > To: Robert Miner > Subject: RE: Trignametric functions in xsl > > Hi Robert > > I am working for a project called OpenXML PPT translator for Microsoft. > > Project details: We are developing a Addin for Office application which > will convert ODF schema of Presentation document to OpenXML schema of > Presentation ML. This will provide facility to user to view or modify > ODF presentation documents in Microsoft Office PowerPoint, and also save > the OpenXML presentation documents as ODF presentation documents using > Microsoft Office PowerPoint. > > Problem: During this xml trnansformation from one schema to other using, > we are facing problem in using trignametric function with xsl version > 1.0 and .NET framework 2.0. Basically I want use the trignamertic > function like sin and cos for calculation. > > e.g during line translation, to calculate rotate factor the following > formula is used. > > <xsl:attribute name ="svg:x1"> > > <xsl:value-of select ="$xCenter - math:cos($angle) * $cxBy2 + > math:sin($angle) * $cyBy2"/> > > </xsl:attribute> > > Use of sin and cos will through an exception like "Cannot find the > script or external object that implements prefix > http://schemas.openxmlformats.org/officeDocument/2006/math" > > Please help me in using sin and cos functions with xsl version 1.0 and > .NET framework 2.0. > > Shweta > Sonata Software Limited > Bangalore > Cell - 9448867910 > > > > > > -----Original Message----- > From: Robert Miner [mailto:robertm@dessci.com] > Sent: Monday, May 14, 2007 11:53 PM > To: Shweta S R; www-math@w3.org > Subject: RE: Trignametric functions in xsl > > Can you give us details? An example would be best. > > --Robert > > Robert Miner > Director, New Product Development > > Design Science, Inc. > 140 Pine Avenue, 4th Floor > Long Beach, California 90802 > USA > Tel: (651) 223-2883 > Fax: (651) 292-0014 > robertm@dessci.com > www.dessci.com > ~ Makers of MathType, MathFlow, MathPlayer, WebEQ, Equation Editor, > TexAide ~ > > > > -----Original Message----- > > From: www-math-request@w3.org [mailto:www-math-request@w3.org] On > Behalf > > Of Shweta S R > > Sent: Monday, May 14, 2007 8:24 AM > > To: www-math@w3.org > > Subject: Trignametric functions in xsl > > > > Dear sir > > > > Trignametric functions like sin and cos are not working with xsl > > version="1.0". > > > > Please help us how to use sin and cos xsl(version 1.0) files. > > > > Shweta > > Sonata Software Limited > > Bangalore > > Cell - 9448867910 > > > > >Received on Tuesday, 15 May 2007 16:26:30 GMT

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