importnumpyasnpfromscipy.interpolateimportinterp1d,interp2d,UnivariateSpline,griddataimportmatplotlib.pyplotaspltnp.random.seed(114514)x0=np.random.uniform(-3,3,50)y0=np.random.uniform(-4,4,50)f=lambdax,y:(x2-2x)np.exp(-x2

importnumpyasnpfromscipy.interpolateimportinterp1d,interp2d,UnivariateSpline,griddataimportmatplotlib.pyplotaspltnp.random.seed(114514)x0=np.random.uniform(-3,3,50)y0=np.random.uniform(-4,4,50)f=lambdax,y:(x2-2x)np.exp(-x2

1.代码实现点击查看代码importnumpyasnpfromscipy.interpolateimportgriddataimportmatplotlib.pyplotasplt#定义函数deff(x,y):return(x**2-2*x)*np.exp(-x**2-y**2-x*y)#生成随机点np.random.seed(0)x_random=np.random.uni

`importnumpyasnpimportmatplotlib.pyplotaspltfromscipy.interpolateimportgriddatadeff(x,y):x2=x2return(x2-2*x)*np.exp(-x2-y2-x*y)x_min,x_max=-3,3y_min,y_max=-4,4num_points=1000x_random=np.random.uniform(x_min,x_ma

importnumpyasnpimportmatplotlib.pyplotaspltfromscipy.interpolateimportgriddatadeff(x,y):return(x2-2*x)*np.exp(-x2-y**2-x*y)x_min,x_max=-3,3y_min,y_max=-4,4num_points=1000x_random=np.random.uniform(x_min,x_max,num_

importnumpyasnpfromscipy.interpolateimportinterp1d,interp2d,UnivariateSpline,griddataimportmatplotlib.pyplotaspltnp.random.seed(114514)x0=np.random.uniform(-3,3,50)y0=np.random.uniform(-4,4,50)f=lambdax,y:(x**2-2*x)*np.ex

`importnumpyasnpfromscipy.interpolateimportinterp1dfromscipy.interpolateimportlagrangeimportpylabasplta=np.loadtxt('data7_4.txt')x0=a[0];y0=a[1]x=np.linspace(0,15,151)yx1=interp1d(x0,y0)#分段线性插值y1=yx1(x)#计算插值

@目录一、线性方程*二、伯努利方程一、线性方程方程\[\cfrac{\mathrm{d}y}{\mathrm{d}x}+P(x)y=Q(x)\tag{1}\]叫做一阶线性微分方程，因为它对于未知函数\(y\)及其导数是一次方程。如果\(Q(x)\equiv0\)，那么方程\((1)\)称为齐次的；如果\(Q(x)\not\equiv0\)，那么方

问题描述com.azure:azure-identityjar包版本从1.2.0升级到1.12.2版本之后报错，错误信息如下：Anattemptwasmadetocallamethodthatdoesnotexist.Theattemptwasmadefromthefollowinglocation:  com.azure.identity.implementation.IdentityClientBase.getConf

创建目录mkdir-p/usr/local/rediscd/usr/local/redis1、下载&解压wget http://download.redis.io/releases/redis-7.4.0.tar.gztar-zxvf redis-7.4.0.tar.gz2、编译cd redis-7.4.0make报错：make[3]:cc：命令未找到安装gccyuminstallgcc-c++清除数据makedist