工业企业能效分析与评价系统软件代码

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1、usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Drawing;namespaceBll.CustomApp.UI{classMathHclpcr{publicstaticdoubledMultiLincCocfficicnt(doublc[larrX,doublcf]arrY,intlength,intdimension){intn=dimension+1;doublet,]Guass=newdouble[n,n+1];for(inti=0;i

2、+){intj;for(j=0;jpoints,intdimension){intcount=points.Count;doublet]arrX=newdouble[count];double[JarrY=newdouble[count];for(inti=0;i

3、

4、

5、n!=0)s=s+Math.Pow(arr[i],n);elses=s+1;}returns;}publ

6、icstaticdoubleSumArr(double[]arrl,intnl,double[]arr2,intn2,intlength)doubles=0;for(inti=0;i

7、

8、n1匸0)&&(arr2[i]!=0

9、

10、n2!=0))s=s+Math.Pow(arrl[i],nl)*Math.Pow(arr2[i],n2);elses=s+1;}returns;}publicstaticdoublcflComputGauss(double[JGuass,intn){inti,j;intk,m;doubletemp;doublema

11、x;doubles;double[]x=newdouble[n];for(i=0;imax){max=Guass[i,j];k=i;if(k!=j){for(m=j;m

12、m++)Guass[i,m]=Guass[i,mJ-GuassJ,mJ*s/(Guass

13、jJJ);for(i=n-1;i>=0;i—){s=0;for(j=i+1;j

14、nts.Length;i++){doublexishu=Math.Round(Coefficients[i],3)；if(i==0)builder.Append(xishu.ToSti'ing());elseif(i==1)builder.Append(xishu.ToString()+"XI");else{builder.Append(xishu.ToString()++i++i);}if((i+1)