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<div style="font-size:30px">'''FINV(prob,df1,df2)'''</div><br/>

<div style="font-size:30px">'''FINV (probability,DegreeOfFreedom1,DegreeOfFreedom2,Accuracy,DivisionMinMaxArray)'''</div><br/>

*<math>prob</math>  is the associated value of F distribution   

*<math>probability</math>  is the associated value of F distribution   

*<math> df_1</math> and <math> df_2</math>is the degrees of freedom.

*<math> DegreeOfFreedom1 </math> and <math> DegreeOfFreedom2 </math>is the degrees of freedom.

==Description==

==Description==

*This function gives the inverse of the F-distribution.

*This function gives the inverse of the F-distribution.

*If <math>FDIST(x,df_1,df_2)=prob</math>, then <math>NORMSINV(prob,df_1,df_2)=x</math>.FINV using the iterating method to find the value of x.

*If <math>FDIST (Number,DegreeOfFreedom1,DegreeOfFreedom2)=probability </math>, then <math>NORMSINV (Probability)=x</math>.FINV using the iterating method to find the value of x.

*Suppose the iteration has not converged after 100 searches, then the function gives the error result.

*Suppose the iteration has not converged after 100 searches, then the function gives the error result.

*FINV can be used to return critical values from the F distribution

*FINV can be used to return critical values from the F distribution

*The calculation of analysis of variance includes the data for F probability for the significance level 0.05.

*The calculation of analysis of variance includes the data for F probability for the significance level 0.05.

*When the value of <math>df_1</math> and <math>df_2</math> are not integers ,then it is converted in to integers.

*When the value of <math>DegreeOfFreedom1</math> and <math>DegreeOfFreedom2</math> are not integers ,then it is converted in to integers.

*This function will return the result as error  when  

*This function will return the result as error  when  

*1. any one of the argument is nonnumeric.

*1. any one of the argument is nonnumeric.

*2.prob<0 or prob>1.

*2.probability<0 or probability>1.

*3.<math>df_1</math> or <math>df_2<1</math> ,and  <math>df_1</math> or <math>df_2>=10^{10}</math>

*3.<math>DegreeOfFreedom1</math> or <math>DegreeOfFreedom2<1</math> ,and  <math>DegreeOfFreedom1</math> or <math>DegreeOfFreedom2>=10^{10}</math>

==ZOS==

==ZOS==

*The syntax is to calculate FINV in ZOS is <math>FINV (probability,DegreeOfFreedom1,DegreeOfFreedom2,accuracy)</math>

*The syntax is to calculate FINV in ZOS is <math>FINV (probability,DegreeOfFreedom1,DegreeOfFreedom2,Accuracy,DivisionMinMaxArray)</math>

**<math>prob</math>  is the associated value of F distribution.

**<math>probability</math>  is the associated value of F distribution.

*For e.g., FINV(0.293,4,5)

*For e.g., FINV(0.293,4,5)