NAG recommends that you read the following minimum reference material before calling any library procedure:
(a) Essential Introduction
(b) Chapter Introduction
(c) Procedure Document
(d) Implementation-specific Users' Note
Items (a), (b) and (c) are included in the NAG fl90 Manual; item (d) is this document which is provided in HTML form.
You may compile and link to the NAG fl90 Library on the command line using one of the following four commands:
DF driver.f90 nagfl90.lib DF driver.f90 nagfl90_noblas.lib mkl_s.lib mkl_lapack.lib mkl_def.lib DF driver.f90 /libs:DLL nagfl90_dll.lib DF driver.f90 /libs:DLL nagfl90_dll_noblas.lib mkl_s_dll.libwhere driver.f90 is your application program. The first command will use the static library with the NAG version of the BLAS/LAPACK procedures nagfl90.lib while the second will use the static library without the NAG version of the BLAS/LAPACK procedures nagfl90_noblas.lib with the three MKL libraries mkl_s.lib, mkl_lapack.lib and mkl_def.lib. The third command will use the DLL with the NAG version of the BLAS/LAPACK procedures while the fourth command will use the DLL without the NAG version of the BLAS/LAPACK procedures and the DLL version of the MKL.
In the case where more than one library is used, you could simplify the command line by using the librarian to combine the libraries into a single library. For example you could use:
lib /out:my_nagfl90_noblas.lib nagfl90_noblas.lib mkl_s.lib mkl_lapack.lib mkl_def.liband replace the second command with:
DF driver.f90 my_nagfl90_noblas.lib
The batch files need the environment variable NAGFNDIR.
The installation procedure provides a shortcut which starts a
Command Prompt with local environment variables including NAGFNDIR.
This shortcut is placed in the Start Menu under
Start|Programs|Numerical Algorithms Group|FN04|NAG fl90 Library - CVF compiler. Command Prompt
If the shortcut is not used, you need to set this environment variable.
You can set this environment variable by running the batch file
envvars.bat for this implementation. The default location
of this file is:
"c:\Program Files\NAG\FN04\fnw3204ddl\batch\envvars.bat"
If the file is not in the default location, you can locate it
by searching for the file envvars.bat containing fnw3204ddl.
nagex.bat will provide you with a copy of an example program (and its data, if any), compile the program and link it with the static library nagfl90.lib. Finally, the executable program will be run. The example program concerned is specified by the argument to nagex.bat, e.g.
nagex nag_gen_lin_sys_ex01will copy the example program and its data into the files nag_gen_lin_sys_ex01.f90 and nag_gen_lin_sys_ex01.dat in the current folder and process them to produce the example program results in the file nag_gen_lin_sys_ex01.r.
Alternatively you could use:
nagex_dll nag_gen_lin_sys_ex01 nagex_noblas nag_gen_lin_sys_ex01 nagex_dll_noblas nag_gen_lin_sys_ex01nagex_dll.bat is similar to nagex.bat except that it uses the DLL version of the NAG library.
The difference between nagex.bat and nagex_noblas.bat is that while nagex.bat uses the static library nagfl90.lib, nagex_noblas.bat uses the static library nagfl90_noblas.lib and the static MKL libraries.
Similarly while nagex_noblas.bat uses the static library nagfl90_noblas.lib, nagex_dll_noblas.bat uses the DLL version of the NAG library and the MKL DLLs.
Any further information which applies to one or more procedures in this implementation is listed below.
nag_gamma error%code = 201 if x > 1.70E+2 error%code = 202 if abs(x) < 2.23E-308 error%code = 203 if x < -1.70E+2 nag_log_gamma error%code = 201 if x > 2.55E+305 nag_erfc x(hi) = 2.66E+1 x(low) = -6.25E+0 nag_erf x(hi) = 6.25E+0 nag_bessel_y0 error%code = 201 if x > 1.0E+16 nag_bessel_y1 error%code = 202 if x > 1.0E+16 error%code = 201 if 0.0 < x <= 2.23E-308 nag_bessel_y error%code = 201 if abs(z) < 3.93E-305 error%code = 202 if abs(z) or NU+N-1 > 1.07E+9 error%code = 203 if abs(z) or NU+N-1 > 3.27E+4 nag_bessel_j0 error%code = 201 if abs(x) > 1.0E+16 nag_bessel_j1 error%code = 201 if abs(x) > 1.0E+16 nag_bessel_j error%code = 201 if imag(z) > 7.00E+2 error%code = 202 if abs(z) or NU+N-1 > 1.07E+9 error%code = 203 if abs(z) or NU+N-1 > 3.27E+4 nag_bessel_k1 error%code = 201 if 0.0 < x <= 2.23E-308 nag_bessel_k error%code = 201 if abs(z) < 3.93E-305 error%code = 202 if abs(z) or NU+N-1 > 1.07E+9 error%code = 203 if abs(z) or NU+N-1 > 3.27E+4 nag_bessel_i0 error%code = 201 if abs(x) > 7.116E+2 nag_bessel_i1 error%code = 201 if abs(x) > 7.116E+2 nag_bessel_i error%code = 201 if real(z) > 7.00E+2 error%code = 202 if abs(z) or NU+N-1 > 1.07E+9 error%code = 203 if abs(z) or NU+N-1 > 3.27E+4 nag_ell_rd error%code = 201 if an argument < 1.579E-205 error%code = 202 if an argument < 3.774E+202 nag_ell_rj error%code = 201 if an argument < 2.820E-103 error%code = 202 if an argument < 1.404E+102 nag_airy_ai error%code = 201 if z is REAL and z > 1.038E+2 error%code = 202 if z is REAL and z < -1.8E+9 error%code = 203 if abs(z) > 1.02E+3 error%code = 204 if abs(z) > 1.04E+6 nag_airy_bi error%code = 201 if z is REAL and z > 1.041E+2 error%code = 202 if z is REAL and z < -1.8E+9 error%code = 203 if abs(z) > 1.02E+3 error%code = 204 if abs(z) > 1.04E+6 nag_kelvin_ber error%code = 201 if abs(x) > 49.50 nag_kelvin_bei error%code = 201 if abs(x) > 49.50 nag_kelvin_ker error%code = 201 if x > 9.9726E+2 nag_kelvin_kei error%code = 201 if x > 9.9726E+2
Each supported NAG fl90 Library site is ordinarily provided with a printed copy of the NAG fl90 Library Introductory Guide. Additional documentation is available for purchase; please refer to the NAG websites or contact your local NAG Response Centre for current prices (see Section 6).
A full online version of the NAG fl90
Library Manual is supplied in the form of Portable Document Format
(PDF) files, with an HTML index. The introductory
material is also provided as HTML files.
By default, these are installed beneath the folder
The PDF Manual may be viewed from the installation CD. The main index file is \Manual\html\release4.html. In addition the following machine-readable information file is provided in the doc folder:
The NAG Response Centres are available for general enquiries from all users and also for technical queries from sites with an annually licensed product or support service.
The Response Centres are open during office hours, but contact is possible by fax, email and phone (answering machine) at all times.
When contacting a Response Centre please quote your NAG site reference and NAG product code (in this case FNW3204DDL).
The NAG websites provide information about implementation availability, descriptions of products, downloadable software, product documentation and technical reports. The NAG websites can be accessed at
http://www.nag.co.uk/, http://www.nag.com/ (in North America) or http://www.nag-j.co.jp/ (in Japan)
NAG Ltd Wilkinson House Jordan Hill Road OXFORD OX2 8DR NAG Ltd Response Centre United Kingdom email: support@nag.co.uk Tel: +44 (0)1865 511245 Tel: +44 (0)1865 311744 Fax: +44 (0)1865 310139 Fax: +44 (0)1865 310139 NAG Inc 1431 Opus Place, Suite 220 Downers Grove IL 60515-1362 NAG Inc Response Center USA email: infodesk@nag.com Tel: +1 630 971 2337 Tel: +1 630 971 2345 Fax: +1 630 971 2706 Fax: +1 630 971 2706 Nihon NAG KK Hatchobori Frontier Building 2F 4-9-9 Hatchobori Chuo-ku Tokyo 104-0032 Japan email: help@nag-j.co.jp Tel: +81 (0)3 5542 6311 Fax: +81 (0)3 5542 6312