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AVR Libc AVRLibc
AVR Libc AVRLibc
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  2. 4 Files
  3. 4.129 math.h
  4. 4.129.42 copysignf

AVRLibc

  • AVR Libc
  • 1 User Manual
  • 2 Library Reference

    AVR Libc Library Reference

  • 3 Example Projects
  • 4 Files
    • 4.1 abort.c
    • 4.2 abort.S
    • 4.3 abs.c
    • 4.4 alloca.h
    • 4.5 asc_store.c
    • 4.6 asctime.c
    • 4.7 asctime_r.c
    • 4.8 asmdemo.c
    • 4.9 assert.c
    • 4.10 assert.h
    • 4.11 atexit.c
    • 4.12 atof.S
    • 4.13 atoi.c
    • 4.14 atoi.S
    • 4.15 atol.c
    • 4.16 atol.S
    • 4.17 atomic.h
    • 4.18 boot.h
    • 4.19 bsearch.c
    • 4.20 calloc.c
    • 4.21 clearerr.c
    • 4.22 cpufunc.h
    • 4.23 crc16.h
    • 4.24 ctime.c
    • 4.25 ctime_r.c
    • 4.26 cty_isfalse.S
    • 4.27 ctype.h
    • 4.28 ctype.S
    • 4.29 daylight_seconds.c
    • 4.30 defines.h
    • 4.31 delay.h
    • 4.32 delay_basic.h
    • 4.33 demo.c
    • 4.34 deprecated.h
    • 4.35 difftime.c
    • 4.36 div.S
    • 4.37 dst_pointer.c
    • 4.38 dtoa_conv.h
    • 4.39 dtoa_prf.c
    • 4.40 dtostre.c
    • 4.41 dtostrf.c
    • 4.42 eedef.h
    • 4.43 eeprom.h
    • 4.44 eerd_block.S
    • 4.45 eerd_byte.S
    • 4.46 eerd_dword.S
    • 4.47 eerd_word.S
    • 4.48 eeupd_block.S
    • 4.49 eeupd_byte.S
    • 4.50 eeupd_dword.S
    • 4.51 eeupd_word.S
    • 4.52 eewr_block.S
    • 4.53 eewr_byte.S
    • 4.54 eewr_dword.S
    • 4.55 eewr_word.S
    • 4.56 ephemera_common.h
    • 4.57 equation_of_time.c
    • 4.58 errno.c
    • 4.59 errno.h
    • 4.60 eu_dst.h
    • 4.61 exit.S
    • 4.62 fatfs_time.c
    • 4.63 fclose.c
    • 4.64 fdevopen.c
    • 4.65 feof.c
    • 4.66 ferror.c
    • 4.67 ffs.S
    • 4.68 ffsl.S
    • 4.69 ffsll.S
    • 4.70 fgetc.c
    • 4.71 fgets.c
    • 4.72 fprintf.c
    • 4.73 fprintf_p.c
    • 4.74 fputc.c
    • 4.75 fputs.c
    • 4.76 fputs_p.c
    • 4.77 fread.c
    • 4.78 fscanf.c
    • 4.79 fscanf_p.c
    • 4.80 ftoa_engine.S
    • 4.81 fuse.h
    • 4.82 fwrite.c
    • 4.83 geo_location.c
    • 4.84 getc.S
    • 4.85 getchar.c
    • 4.86 getenv.c
    • 4.87 gets.c
    • 4.88 gm_sidereal.c
    • 4.89 gmtime.c
    • 4.90 gmtime_r.c
    • 4.91 hd44780.c
    • 4.92 hd44780.h
    • 4.93 ina90.h
    • 4.94 interrupt.h
    • 4.95 inttypes.h
    • 4.96 io.h
    • 4.97 iob.c
    • 4.98 iocompat.h
    • 4.99 isalnum.S
    • 4.100 isalpha.S
    • 4.101 isascii.S
    • 4.102 isblank.S
    • 4.103 iscntrl.S
    • 4.104 isdigit.S
    • 4.105 isLeap.c
    • 4.106 iso_week_date.c
    • 4.107 iso_week_date_r.c
    • 4.108 isotime.c
    • 4.109 isotime_r.c
    • 4.110 isprint.S
    • 4.111 ispunct.S
    • 4.112 isrs.S
    • 4.113 isspace.S
    • 4.114 isxdigit.S
    • 4.115 itoa.S
    • 4.116 itoa_ncheck.S
    • 4.117 labs.c
    • 4.118 largedemo.c
    • 4.119 lcd.c
    • 4.120 lcd.h
    • 4.121 ldiv.S
    • 4.122 lm_sidereal.c
    • 4.123 localtime.c
    • 4.124 localtime_r.c
    • 4.125 lock.h
    • 4.126 ltoa.S
    • 4.127 ltoa_ncheck.S
    • 4.128 malloc.c
    • 4.129 math.h
      • 4.129.1 M_E
      • 4.129.2 M_LOG2E
      • 4.129.3 M_LOG10E
      • 4.129.4 M_LN2
      • 4.129.5 M_LN10
      • 4.129.6 M_PI
      • 4.129.7 M_PI_2
      • 4.129.8 M_PI_4
      • 4.129.9 M_1_PI
      • 4.129.10 M_2_PI
      • 4.129.11 M_2_SQRTPI
      • 4.129.12 M_SQRT2
      • 4.129.13 M_SQRT1_2
      • 4.129.14 NAN
      • 4.129.15 INFINITY
      • 4.129.16 cosf
      • 4.129.17 sinf
      • 4.129.18 tanf
      • 4.129.19 fabsf
      • 4.129.20 fmodf
      • 4.129.21 cbrtf
      • 4.129.22 hypotf
      • 4.129.23 squaref
      • 4.129.24 floorf
      • 4.129.25 ceilf
      • 4.129.26 frexpf
      • 4.129.27 ldexpf
      • 4.129.28 expf
      • 4.129.29 coshf
      • 4.129.30 sinhf
      • 4.129.31 tanhf
      • 4.129.32 acosf
      • 4.129.33 asinf
      • 4.129.34 atanf
      • 4.129.35 atan2f
      • 4.129.36 logf
      • 4.129.37 log10f
      • 4.129.38 powf
      • 4.129.39 isnanf
      • 4.129.40 isinff
      • 4.129.41 isfinitef
      • 4.129.42 copysignf
      • 4.129.43 signbitf
      • 4.129.44 fdimf
      • 4.129.45 fmaf
      • 4.129.46 fmaxf
      • 4.129.47 fminf
      • 4.129.48 truncf
      • 4.129.49 roundf
      • 4.129.50 lroundf
      • 4.129.51 lrintf
      • 4.129.52 double cos

        double cos(double __x)

      • 4.129.53 double sin

        double sin(double __x)

      • 4.129.54 double tan

        double tan(double __x)

      • 4.129.55 double fabs

        double fabs(double __x)

      • 4.129.56 double fmod

        double fmod(double __x, double __y)

      • 4.129.57 double modf

        double modf(double __x, double *__iptr)

      • 4.129.58 float modff

        float modff(float __x, float *__iptr)

      • 4.129.59 double sqrt

        double sqrt(double __x)

      • 4.129.60 float sqrtf

        float sqrtf(float)

      • 4.129.61 double cbrt

        double cbrt(double __x)

      • 4.129.62 double hypot

        double hypot(double __x, double __y)

      • 4.129.63 double square

        double square(double __x)

      • 4.129.64 double floor

        double floor(double __x)

      • 4.129.65 double ceil

        double ceil(double __x)

      • 4.129.66 double frexp

        double frexp(double __x, int *__pexp)

      • 4.129.67 double ldexp

        double ldexp(double __x, int __exp)

      • 4.129.68 double exp

        double exp(double __x)

      • 4.129.69 double cosh

        double cosh(double __x)

      • 4.129.70 double sinh

        double sinh(double __x)

      • 4.129.71 double tanh

        double tanh(double __x)

      • 4.129.72 double acos

        double acos(double __x)

      • 4.129.73 double asin

        double asin(double __x)

      • 4.129.74 double atan

        double atan(double __x)

      • 4.129.75 double atan2

        double atan2(double __y, double __x)

      • 4.129.76 double log

        double log(double __x)

      • 4.129.77 double log10

        double log10(double __x)

      • 4.129.78 double pow

        double pow(double __x, double __y)

      • 4.129.79 int isnan

        int isnan(double __x)

      • 4.129.80 int isinf

        int isinf(double __x)

      • 4.129.81 static int isfinite

        static int isfinite(double __x)

      • 4.129.82 static double copysign

        static double copysign(double __x, double __y)

      • 4.129.83 int signbit

        int signbit(double __x)

      • 4.129.84 double fdim

        double fdim(double __x, double __y)

      • 4.129.85 double fma

        double fma(double __x, double __y, double __z)

      • 4.129.86 double fmax

        double fmax(double __x, double __y)

      • 4.129.87 double fmin

        double fmin(double __x, double __y)

      • 4.129.88 double trunc

        double trunc(double __x)

      • 4.129.89 double round

        double round(double __x)

      • 4.129.90 long lround

        long lround(double __x)

      • 4.129.91 long lrint

        long lrint(double __x)

      • 4.129.92 math.h
    • 4.130 memccpy.S
    • 4.131 memccpy_P.S
    • 4.132 memchr.S
    • 4.133 memchr_P.S
    • 4.134 memcmp.S
    • 4.135 memcmp_P.S
    • 4.136 memcmp_PF.S
    • 4.137 memcpy.S
    • 4.138 memcpy_P.S
    • 4.139 memcpy_PF.S
    • 4.140 memmem.S
    • 4.141 memmem_P.S
    • 4.142 memmove.S
    • 4.143 memrchr.S
    • 4.144 memrchr_P.S
    • 4.145 memset.S
    • 4.146 mk_gmtime.c
    • 4.147 mktime.c
    • 4.148 month_length.c
    • 4.149 moon_phase.c
    • 4.150 mul10.S
    • 4.151 mulsi10.S
    • 4.152 parity.h
    • 4.153 pgmspace.h
    • 4.154 portpins.h
    • 4.155 power.h
    • 4.156 print_lz.c
    • 4.157 printf.c
    • 4.158 printf_p.c
    • 4.159 project.h
    • 4.160 putc.S
    • 4.161 putchar.c
    • 4.162 puts.c
    • 4.163 puts_p.c
    • 4.164 qsort.c
    • 4.165 rand.c
    • 4.166 random.c
    • 4.167 realloc.c
    • 4.168 scanf.c
    • 4.169 scanf_p.c
    • 4.170 set_dst.c
    • 4.171 set_position.c
    • 4.172 set_system_time.c
    • 4.173 set_zone.c
    • 4.174 setbaud.h
    • 4.175 setjmp.h
    • 4.176 setjmp.S
    • 4.177 sfr_defs.h
    • 4.178 signal.h
    • 4.179 signature.h
    • 4.180 sleep.h
    • 4.181 snprintf.c
    • 4.182 snprintf_p.c
    • 4.183 solar_declination.c
    • 4.184 solar_noon.c
    • 4.185 sprintf.c
    • 4.186 sprintf_p.c
    • 4.187 sscanf.c
    • 4.188 sscanf_p.c
    • 4.189 stdint.h
    • 4.190 stdio.h
    • 4.191 stdio_private.h
    • 4.192 stdiodemo.c
    • 4.193 stdlib.h
    • 4.194 stdlib_private.h
    • 4.195 strcasecmp.S
    • 4.196 strcasecmp_P.S
    • 4.197 strcasecmp_PF.S
    • 4.198 strcasestr.S
    • 4.199 strcasestr_P.S
    • 4.200 strcat.S
    • 4.201 strcat_P.S
    • 4.202 strcat_PF.S
    • 4.203 strchr.S
    • 4.204 strchr_P.S
    • 4.205 strchrnul.S
    • 4.206 strchrnul_P.S
    • 4.207 strcmp.S
    • 4.208 strcmp_P.S
    • 4.209 strcmp_PF.S
    • 4.210 strcpy.S
    • 4.211 strcpy_P.S
    • 4.212 strcpy_PF.S
    • 4.213 strcspn.S
    • 4.214 strcspn_P.S
    • 4.215 strdup.c
    • 4.216 strftime.c
    • 4.217 string.h
    • 4.218 strlcat.c
    • 4.219 strlcat.S
    • 4.220 strlcat_P.S
    • 4.221 strlcat_PF.S
    • 4.222 strlcpy.c
    • 4.223 strlcpy.S
    • 4.224 strlcpy_P.S
    • 4.225 strlcpy_PF.S
    • 4.226 strlen.S
    • 4.227 strlen_P.S
    • 4.228 strlen_PF.S
    • 4.229 strlwr.S
    • 4.230 strncasecmp.S
    • 4.231 strncasecmp_P.S
    • 4.232 strncasecmp_PF.S
    • 4.233 strncat.S
    • 4.234 strncat_P.S
    • 4.235 strncat_PF.S
    • 4.236 strncmp.S
    • 4.237 strncmp_P.S
    • 4.238 strncmp_PF.S
    • 4.239 strncpy.S
    • 4.240 strncpy_P.S
    • 4.241 strncpy_PF.S
    • 4.242 strnlen.S
    • 4.243 strnlen_P.S
    • 4.244 strnlen_PF.S
    • 4.245 strpbrk.S
    • 4.246 strpbrk_P.S
    • 4.247 strrchr.S
    • 4.248 strrchr_P.S
    • 4.249 strrev.S
    • 4.250 strsep.S
    • 4.251 strsep_P.S
    • 4.252 strspn.S
    • 4.253 strspn_P.S
    • 4.254 strstr.S
    • 4.255 strstr_P.S
    • 4.256 strstr_PF.S
    • 4.257 strtod.c
    • 4.258 strtok.c
    • 4.259 strtok_P.c
    • 4.260 strtok_r.S
    • 4.261 strtok_rP.S
    • 4.262 strtol.c
    • 4.263 strtoul.c
    • 4.264 strupr.S
    • 4.265 sun_rise.c
    • 4.266 sun_set.c
    • 4.267 system.c
    • 4.268 system_tick.S
    • 4.269 system_time.c
    • 4.270 time.c
    • 4.271 time.h
    • 4.272 tm_store.c
    • 4.273 toascii.S
    • 4.274 tolower.S
    • 4.275 toupper.S
    • 4.276 util/twi.h
    • 4.277 compat/twi.h
    • 4.278 twitest.c
    • 4.279 uart.c
    • 4.280 uart.h
    • 4.281 ultoa.S
    • 4.282 ultoa_invert.S
    • 4.283 ultoa_ncheck.S
    • 4.284 ungetc.c
    • 4.285 usa_dst.h
    • 4.286 utc_offset.c
    • 4.287 utoa.S
    • 4.288 utoa_ncheck.S
    • 4.289 version.h
    • 4.290 vfprintf.c
    • 4.291 vfprintf_p.c
    • 4.292 vfscanf.c
    • 4.293 vfscanf_p.c
    • 4.294 vprintf.c
    • 4.295 vscanf.c
    • 4.296 vsnprintf.c
    • 4.297 vsnprintf_p.c
    • 4.298 vsprintf.c
    • 4.299 vsprintf_p.c
    • 4.300 wdt.h
    • 4.301 week_of_month.c
    • 4.302 week_of_year.c
    • 4.303 xmega.h
    • 4.304 xtoa_fast.h

4.129.42 copysignf

The alias for copysign().

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