logo

oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

csqrt.3p (2325B)

    

  1. '\" et
  2. .TH CSQRT "3P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
  3. .\"
  4. .SH PROLOG
  5. This manual page is part of the POSIX Programmer's Manual.
  6. The Linux implementation of this interface may differ (consult
  7. the corresponding Linux manual page for details of Linux behavior),
  8. or the interface may not be implemented on Linux.
  9. .\"
  10. .SH NAME
  11. csqrt,
  12. csqrtf,
  13. csqrtl
  14. \(em complex square root functions
  15. .SH SYNOPSIS
  16. .LP
  17. .nf
  18. #include <complex.h>
  19. .P
  20. double complex csqrt(double complex \fIz\fP);
  21. float complex csqrtf(float complex \fIz\fP);
  22. long double complex csqrtl(long double complex \fIz\fP);
  23. .fi
  24. .SH DESCRIPTION
  25. The functionality described on this reference page is aligned with the
  26. ISO\ C standard. Any conflict between the requirements described here and the
  27. ISO\ C standard is unintentional. This volume of POSIX.1\(hy2017 defers to the ISO\ C standard.
  28. .P
  29. These functions shall compute the complex square root of
  30. .IR z ,
  31. with a branch cut along the negative real axis.
  32. .SH "RETURN VALUE"
  33. These functions shall return the complex square root value, in the
  34. range of the right half-plane (including the imaginary axis).
  35. .SH ERRORS
  36. No errors are defined.
  37. .LP
  38. .IR "The following sections are informative."
  39. .SH EXAMPLES
  40. None.
  41. .SH "APPLICATION USAGE"
  42. None.
  43. .SH RATIONALE
  44. None.
  45. .SH "FUTURE DIRECTIONS"
  46. None.
  47. .SH "SEE ALSO"
  48. .IR "\fIcabs\fR\^(\|)",
  49. .IR "\fIcpow\fR\^(\|)"
  50. .P
  51. The Base Definitions volume of POSIX.1\(hy2017,
  52. .IR "\fB<complex.h>\fP"
  53. .\"
  54. .SH COPYRIGHT
  55. Portions of this text are reprinted and reproduced in electronic form
  56. from IEEE Std 1003.1-2017, Standard for Information Technology
  57. -- Portable Operating System Interface (POSIX), The Open Group Base
  58. Specifications Issue 7, 2018 Edition,
  59. Copyright (C) 2018 by the Institute of
  60. Electrical and Electronics Engineers, Inc and The Open Group.
  61. In the event of any discrepancy between this version and the original IEEE and
  62. The Open Group Standard, the original IEEE and The Open Group Standard
  63. is the referee document. The original Standard can be obtained online at
  64. http://www.opengroup.org/unix/online.html .
  65. .PP
  66. Any typographical or formatting errors that appear
  67. in this page are most likely
  68. to have been introduced during the conversion of the source files to
  69. man page format. To report such errors, see
  70. https://www.kernel.org/doc/man-pages/reporting_bugs.html .