Next: External Functions Up: Fitting of Data Previous: The Corrected Gauss--Newton . ... Basic functions are either defined in the system or defined by the user as external FORTRAN routines. ... Basic functions are specified by the name, the independent variable(s) and parameter(s), with optional guesses for the parameters, following the syntax: name(var1[, ];par1[, ]) [par1=value] . ... Parameters are defined by unique names after the semicolon in the function specification. ...

... region (region-6.2.2) [xmmsas_20030110_1802-5.4.1] . ... The region task will automatically determine the optimal source and background extraction regions for a detected source in an XMM observation. ... The regions are defined in sky coordinates. region will attempt to maximise the area of the extraction region for each source, whilst ensuring that the extraction regions of neighbouring sources do not overlap, and that the background extraction region for a given source excludes neighbouring...

... In the above example, the second region uses the global coordinate system (PHYSICAL by default). ... Supported systems include: name description ---- ----------- PHYSICAL pixel coords of original file using LTM/LTV IMAGE pixel coords of current file FK4, B1950 sky coordinate systems FK5, J2000 sky coordinate systems GALACTIC sky coordinate systems ECLIPTIC sky coordinate systems ICRS currently same as J2000 LINEAR linear wcs as defined in file In addition, two mosaic coordinate ...

tranback -- Transform an X,Y position from output to input pixel position using the same conventions as drizzle tranback xout yout . xout = 400 [real] . ... The X dimension of the input image (this is used to determine the centre which is the origin of the transformations). (nyin = 800) [real] . ... If "output" the input image center is mapped to the center of the output grid, rotated about that center and then shifted along the grid of the output image. ...

... Abstract Compute L_s, the planetocentric longitude of the sun, as seen from a specified body. ... Brief_I/O Variable I/O Description -------- --- -------------------------------------------------- body I Name of central body. et I Epoch in seconds past J2000 TDB. abcorr I Aberration correction. ... The "instantaneous orbital plane" is interpreted in this routine as the plane normal to the cross product of the position and velocity of the central body relative to the sun. ... Link to routine source ....

... User Guide ] Task: mirflag Purpose: Automated flagging of a UV data set. ... The task scans UV data on a baseline-dependent and channel-dependent basis to find bad data and flag them accordingly. Four flagging modes may be specified via options amp, rms, short and long. ... On a per-baseline basis the median amplitude for a designated "good" channel is determined over the course of the observation, this is the channel-median. ... Probably Bad | ... Key: vis The name of the input UV data set. ...

... Content Model: %text, but no nested anchors . The anchor <A> element is used to define the start and/or destination of a hypertext link. In previous versions of HTML it provided the only means for defining destination anchors within documents, but you can now use any ID attribute as a destination anchor so that links can now be made to divisions, paragraphs and most other elements. ... CLASS . ... This attribute is used to define a named anchor for use as the destination of hypertext links. ...

... Bojan Nikolic web pages (r. 329) . ... The order in which libraries to link to are passed to the linker is important . ... Many libraries use the GNU Autoconf/Automake build toolchain. ... Run the ./configure script, which looks for the various programs and libraries that the package needs . ... The simplest way is to run ./configure and make note of any complaints about missing programs or libraries that it reports. ... Some notes on the GNU toolchain . ... Passing options to configure . ...

Lord Carrington determined the solar rotation rate by watching low-latitude sunspots back in the 1850s. He defined a fixed solar coordinate system that rotates in a sidereal frame every 25.38 days. ... Carrington coordinates are heliographic and measured in latitude and longitude in that rotating frame. Carrington Time is the rotation and longitude of the point on the Sun that is at the sub-terrestrial point. ... Bartels defined his calendar based on observations of daily geomagnetic activity. ...

... All the parameters provided in this database have been obtained using the the MIRIAD ( Sault et al. 1995 ) task MBSPECT . MBSPECT makes a spectrum of the velocity (or frequency) axis of a cube. The spectrum is beam-weighted, over the width specified, for the other image axes. ... Robust parameters are calculated by using an algorithm which minimises the mean absolute deviation of the flux-weighted velocities. mask= This specifies the x-axis ranges to be excluded from any continuum fit. ...

... The initial descriptions of the FITS format provided a simplified method for describing the physical coordinate values of the image pixels, but deliberately did not specify any of the detailed conventions required to convey the complexities of actual image projections. ... They were CRPIX n for the reference pixel location on pixel axis n , CRVAL n for the coordinate value at that pixel, CDELT n for the increment at that pixel in the coordinate value, and CTYPE n for the type of coordinate. ...

... Coordinate system . It is necessary to specify the coordinate system for the drilling of plug-plates so that the drilling file (currently named plPlugMap), plate drilling, cartridge, rotator wrap and the rotator itself are compatible. ... The TCC rotator angle (object system) is defined to be 0 degrees for this orientation. ... Thus, the rotator angle gives the conventional astronomical position angle on the sky of the y axis (although Russell won't acknowledge this necessarily). ...

Astronomy Picture of the Day . ... 31.12.1999 . ... Credit: Apollo 8 Crew, NASA Explanation: When the second millennium began , people generally knew that the Earth was round , but few saw much of it beyond their local village. ... The Earth started as the center of everything , but became a planet placed in the Solar System , which became placed in a Galaxy , which became placed in the Local Group of Galaxies , which became placed in an expanse so vast we call it just the Universe . ... 1999 2000 . ...

... The nodes defined by the specified region and lattice spacing will be set equal to one of three possible values depending on whether the node is outside, on the polygon perimeter, or inside the polygon. ... The xy-files simply represent data point locations and the mask is set to the inside or outside value depending on whether a node is within a maximum distance from the nearest data point. ... Default is grid registration]. ... S Set nodes depending on their distance from the nearest data point. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. December 31, 1999 . The Millennium that Defined Earth . ... The Earth started as the center of everything , but became a planet placed in the Solar System , which became placed in a Galaxy , which became placed in the Local Group of Galaxies , which became placed in an expanse so vast we call it just the Universe . ... About APOD > . ...

Next: Sending Signals - kill() Up: Process Control and Management Previous: pipe() - Low level Piping . ... When a process terminates abnormally it usually tries to send a signal indicating what went wrong. ... The process uses signals which can be numbered 0 to 31. Macros are defined in signal.h header file for common signals. ... Sending Signals - kill() . Receiving signals - signal() . ... Wed Sep 14 10:06:31 BST 1994 ...

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Microsoft Developer Studio Generated NMAKE File, Based on cfitsio.dsp !IF "$(CFG)" == "" CFG=Win32 Release !MESSAGE No configuration specified. ... Win32 Release" "$(CFG)" != ... End Custom Macros ALL : $( OUTDIR )\ cfitsio.dll CLEAN : -@ erase $( INTDIR )\buffers.obj -@ erase $( INTDIR )\cfileio.obj -@ erase $( INTDIR )\checksum.obj -@ erase $( INTDIR )\drvrfile.obj -@ erase $( INTDIR )\drvrmem.obj -@ erase $( INTDIR )\editcol.obj -@ erase $( INTDIR )\edithdu.obj -@ erase $( ...

Stellarium 0.12.3 . ... StelCircleArcRenderer Class Reference . Provides functions to draw circle arcs using StelRenderer . ... drawGreatCircleArc (const Vec3d &start, const Vec3d &stop, const SphericalCap *clippingCap=NULL, void(*viewportEdgeIntersectCallback)(const Vec3d &screenPos, const Vec3d &direction, void *userData)=NULL, void *userData=NULL) . ... Create a circle arc renderer to draw multiple circle arcs . ... void(*)(const Vec3d &screenPos, const Vec3d &direction, void *userData)љ . ...

... Functions are one of the fundamental building blocks in JavaScript. ... The return statement specifies the value returned by the function. return number * number All parameters are passed to functions by value ; the value is passed to the function, but if the function changes the value of the parameter, this change is not reflected globally or in the calling function. ... return 1 . ... The two "parse" functions, parseInt and parseFloat , return a numeric value when given a string as an argument. ...