search for: ctanh

Dear all, We seem to have found a "strange" behaviour in the hyperbolic tangent function tanh on Windows. When running tanh(356 + 0i) the Windows result is NaN + 0.i while on Mac the result is 1 + 0i. It doesn't seem to be a floating point error because on Mac it is possible to run arbitrarily large numbers (say tanh(

...that the problem is still present there: In yesterday's version of R-devel, tanh(500+0i) still returns NaN+0i. I now think a better solution would be to use R's internal substitute (in R's src/main/complex.c): There, we have ------------------------------------------------ #ifndef HAVE_CTANH #define ctanh R_ctanh static double complex ctanh(double complex z) { return -I * ctan(z * I); /* A&S 4.5.9 */ } #endif ------------------------------------------------ and we should use it (by "#undef HAVE_CTAN" (or better by a configure check, using ctanh(&...

...and is declared... no checking whether cacos exists and is declared... no checking whether casin exists and is declared... no checking whether catan exists and is declared... no checking whether ccosh exists and is declared... no checking whether csinh exists and is declared... no checking whether ctanh exists and is declared... no checking whether cacosh exists and is declared... no checking whether casinh exists and is declared... no checking whether catanh exists and is declared... no configure: error: Support for C99 complex type is required. [..script stops here..] Until 2.12.1 this works fo...

...main/complex.c:579: undefined reference to `ccosh' complex.o(.text+0xef8): In function `z_sinh': /usr/local/R-alpha/src/main/complex.c:584: undefined reference to `csinh' complex.o(.text+0xf18): In function `z_tanh': /usr/local/R-alpha/src/main/complex.c:589: undefined reference to `ctanh' *** Error code 1 Stop in /usr/local/R-alpha/src/main. *** Error code 1 Stop in /usr/local/R-alpha/src/main. *** Error code 1 Stop in /usr/local/R-alpha/src. *** Error code 1 Stop in /usr/local/R-alpha. ======================================================== Am I missing something? Thank you...

...ared... yes checking whether cacos exists and is declared... yes checking whether casin exists and is declared... yes checking whether catan exists and is declared... yes checking whether ccosh exists and is declared... yes checking whether csinh exists and is declared... yes checking whether ctanh exists and is declared... yes checking for cblas_cdotu_sub in vecLib framework... no checking iconv.h usability... yes checking iconv.h presence... yes checking for iconv.h... yes checking for iconv... no checking for iconvlist... no checking for iconv... no, consider installing GNU libiconv...

.... yes checking for clog... yes checking for csqrt... yes checking for cpow... yes checking for ccos... yes checking for csin... yes checking for ctan... yes checking for cacos... yes checking for casin... yes checking for catan... yes checking for ccosh... yes checking for csinh... yes checking for ctanh... yes checking for cacosh... yes checking for casinh... yes checking for catanh... yes checking whether C99 double complex is compatible with Rcomplex... no no checking for cblas_cdotu_sub in vecLib framework... no checking for dgemm_... no checking for ATL_xerbla in -latlas... no checking for dge...

...s declared... yes checking whether cacos exists and is declared... yes checking whether casin exists and is declared... yes checking whether catan exists and is declared... yes checking whether ccosh exists and is declared... yes checking whether csinh exists and is declared... yes checking whether ctanh exists and is declared... yes checking whether cacosh exists and is declared... yes checking whether casinh exists and is declared... yes checking whether catanh exists and is declared... yes checking whether C99 double complex is compatible with Rcomplex... yes yes checking for cblas_cdotu_sub in...

...s declared... yes checking whether cacos exists and is declared... yes checking whether casin exists and is declared... yes checking whether catan exists and is declared... yes checking whether ccosh exists and is declared... yes checking whether csinh exists and is declared... yes checking whether ctanh exists and is declared... yes checking for cblas_cdotu_sub in vecLib framework... no checking for dgemm_ in -L/usr/lib/blas/reference -lblas ... yes checking whether double complex BLAS can be used... yes checking whether the BLAS is complete... yes checking iconv.h usability... yes checking iconv...

...s declared... yes checking whether cacos exists and is declared... yes checking whether casin exists and is declared... yes checking whether catan exists and is declared... yes checking whether ccosh exists and is declared... yes checking whether csinh exists and is declared... yes checking whether ctanh exists and is declared... yes checking whether cacosh exists and is declared... yes checking whether casinh exists and is declared... yes checking whether catanh exists and is declared... yes checking whether C99 double complex is compatible with Rcomplex... yes yes checking for cblas_cdotu_sub in...

...s declared... yes checking whether cacos exists and is declared... yes checking whether casin exists and is declared... yes checking whether catan exists and is declared... yes checking whether ccosh exists and is declared... yes checking whether csinh exists and is declared... yes checking whether ctanh exists and is declared... yes checking whether cacosh exists and is declared... yes checking whether casinh exists and is declared... yes checking whether catanh exists and is declared... yes checking whether C99 double complex is compatible with Rcomplex... yes yes checking for cblas_cdotu_sub in...