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  • solve

    2019-04-08 22:02:00
    s=solve(200-200*x^(-0.4)-6*x,x) 返回: 警告: The solutions are parameterized by the symbols: z2. To include parameters and conditions in the solution, specify the 'ReturnConditions' option....

    用matlab解方程

    s=solve(200-200*x^(-0.4)-6*x,x)

    返回:

    警告: The solutions are parameterized by the symbols: z2.
    To include parameters and conditions in the solution, specify the 'ReturnConditions'
    option.
    > In solve>warnIfParams (line 500)
    In solve (line 356)
    警告: The solutions are valid under the following conditions: z2^7 - (100*z2^2)/3 +
    100/3 == 0 & -pi/5 < angle(z2) & angle(z2) <= pi/5.
    To include parameters and conditions in the solution, specify the 'ReturnConditions'
    option.
    > In solve>warnIfParams (line 507)
    In solve (line 356)

    s =

    z2^5

    help solve中关于z的表述:

    Example 12:
    syms a x y
    [x0, y0, params, conditions] = solve(x^2+y, x, y, 'ReturnConditions', true)
    generates a new parameter z to express the infinitely many solutions.
    This z can be any complex number, both solutions are valid without
    restricting conditions:

    ===============================================

    换思路求解,平方后用fmincon优化!

    转载于:https://www.cnblogs.com/lancezliang/p/10673820.html

    展开全文
  • conda安装库时报错: conda install keras Collecting package metadata (current_repodata....Solving environment: failed with initial frozen solve. Retrying with flexible solve. Solving environment: fai...

    conda安装库时报错:

    conda install keras
    Collecting package metadata (current_repodata.json): done
    Solving environment: failed with initial frozen solve. Retrying with flexible solve.
    Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
    

    解决方案:

    conda config --set channel_priority flexible
    

    然后就正常运行了(换了更加灵活的方式???)

    conda install keras
    Collecting package metadata (current_repodata.json): done
    Solving environment: failed with initial frozen solve. Retrying with flexible solve.
    Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
    Collecting package metadata (repodata.json): done
    Solving environment: done
    
    ## Package Plan ##
    
      environment location: E:\Apps\Anaconda3
    
      added / updated specs:
        - keras
    
    
    The following packages will be downloaded:
    
        package                    |            build
        ---------------------------|-----------------
        tensorflow-base-1.15.0     |mkl_py37h190a33d_0        36.2 MB
        ------------------------------------------------------------
                                               Total:        36.2 MB
    
    The following NEW packages will be INSTALLED:
    
      keras              pkgs/main/win-64::keras-2.2.4-0
      keras-base         pkgs/main/win-64::keras-base-2.2.4-py37_0
    
    The following packages will be DOWNGRADED:
    
      tensorflow                       2.0.0-mkl_py37he1bbcac_0 --> 1.15.0-mkl_py37h3789bd0_0
      tensorflow-base                  2.0.0-mkl_py37hd1d5974_0 --> 1.15.0-mkl_py37h190a33d_0
      tensorflow-estima~                     2.0.0-pyh2649769_0 --> 1.15.1-pyh2649769_0
    
    
    Proceed ([y]/n)? y
    
    

    看了一下安装过程,好像是keras基于底层是tensorflow1.5,呃。。。

    然后就放弃了keras,重构了下代码,用tensorflow.keras代替了keras。大部分的keras在tensorflow.keras都有,有些不能直接对应的自己去网上查查就行了。

    展开全文
  • 今天安装psycopg2,使用科学上网和conda,出现了“Solving environment: failed with initial frozen solve. Retrying with flexible solve.”的问题。百度之后,说是需要更新Conda。 分别使用如下命令更新了Conda ...

    今天安装psycopg2,使用科学上网和conda,出现了“Solving environment: failed with initial frozen solve. Retrying with flexible solve.”的问题。百度之后,说是需要更新Conda。

    分别使用如下命令更新了Conda

    conda update -n base conda
    conda update --all

    然而结果还是:

    突然想起在win的时候也遇到过类似的情况,其实是无意中在忘记如何更新conda的时候输入过一个指令,然后conda给我提示如下:

     

    于是我按照这个提示更新了conda,也就是如果你拿不准怎么更新prefix的情况下,输入conda update就好,会跳出你的prefix后面的目录(其实我没太懂这个跟base区别在哪)。

    输入这个命令以后会跳出很长的一条更新的信息,按照老的惯例,按y就可以。 

    开始更新。

    更新完成以后再一次conda update --all。

    这时候我再安装psycopg2,就没有任何问题了。

    重点:遇事不决(conda安装有问题),更新conda prefix。 

     


    更新:

    后续看到评论有人说这样方法不行,我也遇到通过更新conda prefix失败的场景,好像是conda 4.x的版本有可能失效(具体是多少我忘记了,大概是2019还是2020的10月份的版本)

    在StackOverFlow上看到的解决方案是,只能彻底卸载Anaconda重装,重装以后就好了。

    展开全文
  • Rename solve

    2020-12-26 04:26:18
    <div><p>The name <code>solve</code> is not good to denote the "backslash" operator, i.e. solving linear systems. It easily conflicts with other uses of the symbol "solve" and is not ...
  • Merge solve

    2020-12-01 12:21:25
    <div><p>Merge solve</p><p>该提问来源于开源项目:zalando/zalenium</p></div>
  • <div><p>I found this bug using pyadjoint with multigrid options, where the adjoint solve uses firedrake algebraic solve. <pre><code>python from firedrake import * mesh = UnitSquareMesh(8, 8) ...
  • solve_cupcake-源码

    2021-03-14 14:19:20
    solve_cupcake
  • 我解决了我的问题。在首先,在Mateusz Paprocki的推荐之后,我从master安装了sympy。...这导致solve()和solve_poly_system()同时退出NotImplementedError: only zero-dimensional systems supported (finite n...

    我解决了我的问题。在

    首先,在Mateusz Paprocki的推荐之后,我从master安装了sympy。这解决了solve()的问题

    经过一番努力,我发现我的程序依赖于某些输入文件的读取顺序。这导致solve()和solve_poly_system()同时退出NotImplementedError: only zero-dimensional systems supported (finite number of solutions)

    当我改变读取输入文件的顺序时。在

    更具体地说,我正在使用hadoop1.0.2流媒体。我正在阅读一些文件,每个文件都有一个具体的,不同的内容和结构。这总的内容给出了一个线性系统经过一些操作与sypy模块。问题就在这里。在

    Hadoop流不以任何特定的顺序读取输入文件。为此,在一起解析不同的文件时必须小心。我的“解析器”期望输入文件按一定的顺序排列。当顺序不同时,文件的操作已经给出了一个错误的系统来解决。因此,solve()、solve\u poly\u system()引发了NotImplementedError。解决这个问题的方法是修复我的“解析器”。在

    最后,我使用solve_poly_system(seq,*gens,**args)的论点,他们的意思是seq=sequence,等于0的一系列方程。在我的

    案例,序列是一个列表

    *gens=在我的例子中,是一个变量列表。根据这些变量,我解出了我的系统。

    展开全文
  • 成功解决Solving environment: failed with initial frozen solve. Retrying with flexible solve. 目录 解决问题 解决思路 解决方法 安装过程…… 解决问题 Solving environment: failed ...
  • 展开全部在MATLAB中,solve函数主要是用来求解代数方程(多项式方程)的符号62616964757a...用法示例:solve(eq)solve(eq, var)solve(eq1, eq2, ..., eqn)g = solve(eq1, eq2, ..., eqn, var1, var2, ..., varn)其中...
  • FEProblem No Solve

    2020-12-27 09:00:39
    <div><p>Need to be able to run a problem where there is no nonlinear solve (ie no nonlinear variables or Kernels). <p>I'm thinking this will need to have a "solve = false" type option ...
  • Solve #5145

    2021-01-08 05:54:28
    <div><p>Solve #5145</p><p>该提问来源于开源项目:wesnoth/wesnoth</p></div>
  • Solve #768

    2021-01-06 19:27:23
    <div><p>Solve bug #768</p><p>该提问来源于开源项目:ampache/ampache</p></div>
  • solve-hackerrank-源码

    2021-03-27 00:05:14
    solve-hackerrank
  • Solve memory problems

    2020-12-30 06:46:23
    t solve the memory problem. I tried removing the <code>videoObject</code> from the scene, that also didn't work. Any ideas how to solve this? Maybe there is some ways for clearing memory within ...
  • Solve.h

    2021-01-08 14:14:42
    <div><p>getting error Solve function call in robust_estimator_ACRansacKernelAdaptator.h file.How to handle this?</p><p>该提问来源于开源项目:openMVG/openMVG</p></div>
  • 遇到使用Conda出现:Solving environment: failed with initial frozen solve. Retrying with flexible solve的问题。解决方法如下: 首先执行再shell里面执行conda update,然后就会出现如下指令。 然后执行...
  • Codeforces_Problems_Solve
  • MATLAB的solve函数

    万次阅读 多人点赞 2016-07-12 22:48:09
    solve函数可以进行以下情况的求解: (1)等式:单/多变量+线性/非线性 ;(2)不等式 MATLAB方程组、不等式求解。
  • Programmers_Solve:https
  • SolveIt:SolveIt是一个应用程序,可以帮助您快速求解数学方程式。 正在开发中
  • Solve issue #1523

    2020-11-25 14:24:18
    <div><h2>Hello, this is a pull request to solve the build error on Travis CI and to solve issue #1523. <p>There was a bug of the Hebrew translation of supertux2.desktop, there is a fix in this pull ...
  • eql_solve.m

    2020-03-31 16:29:04
    本代码为MATLAB solve函数的示例,通过一个线性方程组的求解演示该函数的用法,希望对您有所帮助!!!
  • Solve Issue #214

    2020-12-01 12:01:14
    <div><ul><li>Solve issues about rendering HTML</li><li>Solve simple Materialize problems. Materialize doesn't include tabs-top and categories support. I will add this on a next PR. </li></ul>该...
  • Matlab中solve函数主要是用来求解线性方程组的解析解或者精确解对于得出的结果是符号变量可以通过vpa)得出任意位数的数值解 solve函数的语法定义主要有以下四种 solve(eq) solve(eq, var) solve(eq1, eq2, , eqn) g ...
  • 踩了很多坑,网上也查了很多,看懵逼了也没解决,自己捣鼓一下午终于是解决了,解决方法如下: 嗯。。。报错的图当时忘了截。。。...首先把你安装的anaconda卸了重装,反正我是这么干的,强迫症患者,这样干净 ...
  • yices ef-solve

    2020-12-28 19:37:03
    The yices EF solver is purportedly the best available, but trying to solve a formula with a single outer <code>ForAll</code> with <code>solver_name='yices'</code> raises the error: "...
  • Solve #237 bug

    2021-01-06 10:38:23
    <div><p>Solve indent problem in chaos.py</p><p>该提问来源于开源项目:Chaosthebot/Chaos</p></div>
  • lp_solve资源包

    2018-07-22 22:43:56
    lp_solve学习资源包,包含官方手册,C#和Delphi版的代码示例
  • SSIS Problem and Solve

    2013-10-22 01:13:04
    SSIS Problem and Solve

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