Difference between revisions of "User:Regina"

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[[/MYDrafts3]] TTEST
 
[[/MYDrafts3]] TTEST
  
[[/MYDrafts4]] TEX2WikiTest
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[[/MYDrafts4]] Angle problems in ODF 1.2
  
 
[[/ComparisonWriterDrawPicture]] Comparison between Writer- and Draw-picture
 
[[/ComparisonWriterDrawPicture]] Comparison between Writer- and Draw-picture
 +
 +
[[/MYDrafts5]] Custom Shapes
  
 
=== Development ===
 
=== Development ===
Currently: Adapt smoothing with splines to ODF1.2 norm
+
Currently: Adding more font colors to Math [[/MYDrafts6]] Colors in Math
  
 
== Sandbox ==
 
== Sandbox ==
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Test Wiki-markup here
 
Test Wiki-markup here
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 +
<math>\sum_{k=1}^N k \pm i</math>
 +
 +
<math>a - b </math>
 +
 +
<math>a + b</math>
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 +
<math>{a \pm b}</math>
  
 
<nowiki><math>\sum_{k=1}^N k^2</math></nowiki>
 
<nowiki><math>\sum_{k=1}^N k^2</math></nowiki>
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=== dashboard ===
 
=== dashboard ===
 
 
 
==IMCOSH==
 
Returns the hyperbolic cosine of a complex number.
 
 
===Syntax===
 
<code>IMCOSH( z )</code>
 
: where z is a complex number as described in [[Documentation/How_Tos/Calc:_Complex_Number_functions]]
 
 
===Sematics===
 
<code>IMCOSH("a+bj")</code> calculates:
 
: <math> \cosh{(a)}\, \cos{(b)}+ \sinh{(a)}\, \sin{(b)} \mbox{ j}  </math> 
 
 
===Issues===
 
The function is not implemented in versions before AOO 4.0 and before LibO 3.7.
 
 
 
 
==IMCOT==
 
Returns the cotangent of a complex number
 
 
===Syntax===
 
<code>IMCOT( z )</code>
 
: where z is a complex number as described in [[Documentation/How_Tos/Calc:_Complex_Number_functions]]
 
 
===Semantics===
 
<code>IMCOT( z )</code> is equivalent to <code>IMDIV(IMCOS(z);IMSIN(z))</code>
 
To get better accuracy it is not implemented that way. With the notation <code>IMCOT("a+bj")="c+dj"</code> the used formulas are
 
: real part <math> c = \frac {\sin(2a)} {\cosh(2b)-\cos(2a)}</math>
 
: imaginary part <math>d= \frac {-\sinh(2b) } {\cosh(2b)-\cos(2a)}</math>
 
 
===Issues===
 
The function is not implemented in versions before AOO 4.0 and before LibO 3.7.
 
 
 
 
 
==IMCSC==
 
Returns the cosecant of a complex number.
 
 
===Syntax===
 
<code>IMCSC( z )</code>
 
: where z is a complex number as described in [[Documentation/How_Tos/Calc:_Complex_Number_functions]]
 
 
===Semantics===
 
<code>IMCSC( z )</code> is equivalent to <code>IMDIV(1;IMSIN( z ))</code>
 
To get better accuracy it is not implemented that way. With the notation <code>IMCOT("a+bj")="c+dj"</code> the used formulas are
 
: real part <math> c = \frac{2\sin(a)\,\cosh(b)}{\cosh(2b)-\cos(2a)}</math>
 
: imaginary part <math>d = \frac{-2\cos(a)\,\sinh(b)}{\cosh(2b)-\cos(2a)}</math>
 
 
===Issues===
 
The function is not implemented in versions before AOO 4.0 and before LibO 3.7.
 
 
 
 
==IMCSCH==
 
Returns the hyperbolic cosecant of a complex number.
 
 
===Syntax===
 
<code>IMCSCH( z )</code>
 
: where z is a complex number as described in [[Documentation/How_Tos/Calc:_Complex_Number_functions]]
 
 
===Semantics===
 
<code>IMCSCH( z )</code> is equivalent to <code>IMDIV(1;IMSINH( z ))</code>
 
: To get better accuracy it is not implemented that way. With the notation <code>IMCOT("a+bj")="c+dj"</code> the used formulas are
 
: real part <math> c = \frac{2\sinh(2a)\,\cosh(b)}{\cosh(2a)-\cos(2b)}</math>
 
: imaginary part <math>d = - \frac{2\cosh(2a)\,\sin(b)}{\cosh(2a)-\cos(2b)}</math>
 
 
 
===Issues===
 
The function is not implemented in versions before AOO 4.0 and before LibO 3.7.
 
 
 
==IMSINH==
 
Returns the hyperbolic sine of a complex number.
 
 
===Syntax===
 
<code>IMSINH( z )</code>
 
: where z is a complex number as described in [[Documentation/How_Tos/Calc:_Complex_Number_functions]]
 
 
===Semantics===
 
: If N=a+bi, then sinh(N)=sinh(a)cos(b)+cosh(a)sin(b)i.
 
 
===Issues===
 
The function is not implemented in versions before AOO 4.0 and before LibO 3.7.
 
 
 
 
==IMSEC==
 
Returns the secant of a complex number.
 
 
===Syntax===
 
IMSEC( z )
 
: where z is a complex number as described in [[Documentation/How_Tos/Calc:_Complex_Number_functions]]
 
 
===Semantics===
 
Equivalent to the following:
 
IMDIV(1;IMCOS(N))
 
 
===Issues===
 
The function is not implemented in versions before AOO 4.0 and before LibO 3.7.
 
 
 
==IMSECH==
 
Returns the hyperbolic secant of a complex number.
 
 
===Syntax===
 
IMSECH( z )
 
: where z is a complex number as described in [[Documentation/How_Tos/Calc:_Complex_Number_functions]]
 
 
===Semantics===
 
Computes the hyperbolic secant. This is equivalent to:
 
IMDIV(1;IMCOSH(N))
 
===Issues===
 
The function is not implemented in versions before AOO 4.0 and before LibO 3.7.
 
 
 
==IMTAN==
 
Returns the tangent of a complex number.
 
 
===Syntax===
 
IMTAN( Z )
 
: where z is a complex number as described in [[Documentation/How_Tos/Calc:_Complex_Number_functions]]
 
 
===Semantics===
 
Equivalent to the following (except N is computed only once):
 
IMDIV(IMSIN(N);IMCOS(N))
 
===Issues===
 
The function is not implemented in versions before AOO 4.0 and before LibO 3.7.
 

Latest revision as of 11:38, 23 October 2014

native language
German
active in project
de, qa, sc, graphics, LibreOffice, Apache OpenOffice
user name
regina
special interest
www.ooowiki.de
email
rb.henschel@t-online.de

Anleitung

ToDo

Working on functions sides

Statistical functions

Functions listed alphabetically, Functions listed by category

ODFF and accuracy problems in statitistic functions

Treatment of new Excel 2010 functions

Planning Wiki-Pages

/MyDrafts new document on Precision and Accuracy

/MYDrafts2 new specification for print ranges

/MYDrafts3 TTEST

/MYDrafts4 Angle problems in ODF 1.2

/ComparisonWriterDrawPicture Comparison between Writer- and Draw-picture

/MYDrafts5 Custom Shapes

Development

Currently: Adding more font colors to Math /MYDrafts6 Colors in Math

Sandbox

math tests

[[1]]

Test Wiki-markup here

<math>\sum_{k=1}^N k^2</math>

<math>\scriptstyle \sqrt {n-1}</math>

<math>\sqrt {n-1}</math>

<math> s_{X_1 - X_2}</math>

<math>1-P( -|z| \le Z \le |z|)</math>

<math>\textstyle \sum_{k=1}^N k^2</math>

<math>\sum_{k=1}^N k^2</math>

<math>\int_{1}^{3}\frac{e^3/x}{x^2}\, dx</math>

<math>\sum_{k=1}^N k^2</math>

<math>\frac{1}{N} \sum_{k=2}^N k^2</math>

\frac{1} {n} \sum_{i} {(x_i - \bar x)(y_i - \bar y)}</math>

dashboard

Personal tools