bigfloat

python 'bigfloat' package installation issues

半腔热情 提交于 2020-01-10 16:59:09
问题 I'm trying to get the package 'bigfloat' installed on my Mac (OS X 10.8.4), and I'm running into some issues. The package 'bigfloat' requires two other dependencies: 1) mpfr, and 2) gmp. I've installed gmp here: http://gmplib.org/ <-- This seemed to work fine. But installing mpfr is not as easy (http://www.mpfr.org/mpfr-current/mpfr.html#Installing-MPFR). They say to simply ./configure, make, and make install to get it going, but I get this error: checking for gmp.h... no configure: error:

Module Successfully Installed, but Not Found in IPython

佐手、 提交于 2019-12-04 06:24:07
问题 I have installed the package bigfloat and the MPFR and GMP libraries. When I run python in the terminal (I use a Mac), bigfloat can be imported and works successfully. However, I typically write my scripts in iPython Notebook. When I try to import bigfloat here, it says 'module not found.' I have installed other packages such as SciPy, and using print scipy. file I see that it is located at //anaconda/lib/python2.7/site-packages/scipy/ init .pyc I'm not sure of how to check where bigfloat is

Module Successfully Installed, but Not Found in IPython

左心房为你撑大大i 提交于 2019-12-02 07:50:37
I have installed the package bigfloat and the MPFR and GMP libraries. When I run python in the terminal (I use a Mac), bigfloat can be imported and works successfully. However, I typically write my scripts in iPython Notebook. When I try to import bigfloat here, it says 'module not found.' I have installed other packages such as SciPy, and using print scipy. file I see that it is located at //anaconda/lib/python2.7/site-packages/scipy/ init .pyc I'm not sure of how to check where bigfloat is located. From reading other peoples' installation issues, I am thinking that there might be more than

Calculating big float number fast like 0.4 ^ 100000000 ,, any ideas?

大城市里の小女人 提交于 2019-12-01 08:19:10
问题 Ehm ... I got a problem I've a certain calculation that result is over 10^-308 (the biggest value in double .net ) any way I solved this problem through a library called BIGFLOAT http://www.fractal-landscapes.co.uk/bigint.html , What ever I need to calculate something like 0.4 ^(1000 or 100000000) the problem it takes very very long time I didn't study parallel or distributed programming yet but I need a solution that is fast and understandable for me I'm going to deliver this project in next

Fast BigFloat unit for Delphi

孤者浪人 提交于 2019-12-01 06:40:36
问题 I'm looking for a fast BigFloat unit, which can deal with addition, subtraction, multiplication and division (log would be fine but isn't necessary) and which has a precision of at least 100 decimal places. I've tried this unit, but it's about 1,000 times slower than standard extended operations. So, does anyone know a fast(er) BigFloat unit for Delphi? Henry 回答1: To summarize the comments to the OP's question. A C library is probably the best solution for a big floating point library. GMP

python 'bigfloat' package installation issues

本秂侑毒 提交于 2019-11-30 10:51:24
I'm trying to get the package 'bigfloat' installed on my Mac (OS X 10.8.4), and I'm running into some issues. The package 'bigfloat' requires two other dependencies: 1) mpfr, and 2) gmp. I've installed gmp here: http://gmplib.org/ <-- This seemed to work fine. But installing mpfr is not as easy ( http://www.mpfr.org/mpfr-current/mpfr.html#Installing-MPFR ). They say to simply ./configure, make, and make install to get it going, but I get this error: checking for gmp.h... no configure: error: gmp.h can't be found, or is unusable. I've googled around and people suggest specifying paths in the

Is there a BigFloat class in C#?

[亡魂溺海] 提交于 2019-11-26 19:08:34
System.Numerics.BigInteger lets you multiply large integers together, but is there anything of the same type for floating point numbers? If not, is there a free library I can use? //this but with floats System.Numerics.BigInteger maxint = new BigInteger(int.MaxValue); System.Numerics.BigInteger big = maxint * maxint * maxint; System.Console.WriteLine(big); Perhaps you're looking for BigRational ? Microsoft released it under their BCL project on CodePlex. Not actually sure how or if it will fit your needs. It keeps it as a rational number. You can get the a string with the decimal value either

Is there a BigFloat class in C#?

南笙酒味 提交于 2019-11-26 04:55:22
问题 System.Numerics.BigInteger lets you multiply large integers together, but is there anything of the same type for floating point numbers? If not, is there a free library I can use? //this but with floats System.Numerics.BigInteger maxint = new BigInteger(int.MaxValue); System.Numerics.BigInteger big = maxint * maxint * maxint; System.Console.WriteLine(big); 回答1: Perhaps you're looking for BigRational? Microsoft released it under their BCL project on CodePlex. Not actually sure how or if it