老师，请问讲义中哪一部分有这个公式呢？
还有，Libor是代表无风险利率吗？
多谢！
问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ201512020800000101 问题如下 1. Baseupon Exhibit 1, the forwarpremium (scount) for a 360-y INR/Gforwarcontrais closest to: A.–1.546. B.1.546 C.1.576 C is correct.The equation to calculate the forwarpremium (scount) is:Ff/SflSf/[Actual360]1+iActual360])(if−iF_{f/-S_{fl=S_{f/(\frac{\lbrack{\splaystyle\frac{Actual}{360}}\rbrack}{1+i_lbrack{\splaystyle\frac{Actual}{360}}\rbrack})(i_f-i_Ff/−Sfl=Sf/(1+i[360Actual][360Actual])(if−i)Sf/_{f/Sf/ is the spot rate with Gthe base currenor anINR the foreign currenor em f /em .Sf/em f /em .S_{f/ em f /em .Sf/ per Exhibit 1 is 79.5093, i f is equto 7.52% ani is equto 5.43%.With Gthe base curren(i.e. the “mesticurrency) in the INR/Gquote, substituting in the relevant base currenvalues from Exhibit 1 yiel the following:Ff/Sf/79.5093([360360]1+0.0543[360360])(0.0752−0.0543)F_{f/-S_{f/=79.5093(\frac{\lbrack{\splaystyle\frac{360}{360}}\rbrack}{1+0.0543\lbrack{\splaystyle\frac{360}{360}}\rbrack})(0.0752-0.0543)Ff/−Sf/=79.5093(1+0.0543[360360][360360])(0.0752−0.0543)Ff/Sf/79.5093(11.0543)(0.0752−0.0543)F_{f/-S_{f/=79.5093(\frac1{1.0543})(0.0752-0.0543)Ff/−Sf/=79.5093(1.05431)(0.0752−0.0543)Ff/Sf/1.576F_{f/-S_{f/=1.576Ff/−Sf/=1.576考点 利率平价公式的计算.解析 CovereIRP:Ff/SflSf/[Actual360]1+iActual360])(if−iF_{f/-S_{fl=S_{f/(\frac{\lbrack{\splaystyle\frac{Actual}{360}}\rbrack}{1+i_lbrack{\splaystyle\frac{Actual}{360}}\rbrack})(i_f-i_Ff/−Sfl=Sf/(1+i[360Actual][360Actual])(if−i)其中，GBP代表的是本币，而INR代表的是外币，于是直接代入数字到上述公式中可得Ff/Sf/79.5093([360360]1+0.0543[360360])(0.0752−0.0543)F_{f/-S_{f/=79.5093(\frac{\lbrack{\splaystyle\frac{360}{360}}\rbrack}{1+0.0543\lbrack{\splaystyle\frac{360}{360}}\rbrack})(0.0752-0.0543)Ff/−Sf/=79.5093(1+0.0543[360360][360360])(0.0752−0.0543)Ff/Sf/79.5093(11.0543)(0.0752−0.0543)F_{f/-S_{f/=79.5093(\frac1{1.0543})(0.0752-0.0543)Ff/−Sf/=79.5093(1.05431)(0.0752−0.0543)Ff/Sf/1.576F_{f/-S_{f/=1.576Ff/−Sf/=1.576 这个答案的公式怎么看不懂，和课件的不一样啊，下图左边是课件，右边是答案。按照课件算出来的结果和答案算出来的不一样
NO.PZ201512020800000101问题如下1. Baseupon Exhibit 1, the forwarpremium (scount) for a 360-y INR/Gforwarcontrais closest to:A.–1.546.B.1.546C.1.576C is correct.The equation to calculate the forwarpremium (scount) is:Ff/SflSf/[Actual360]1+iActual360])(if−iF_{f/-S_{fl=S_{f/(\frac{\lbrack{\splaystyle\frac{Actual}{360}}\rbrack}{1+i_lbrack{\splaystyle\frac{Actual}{360}}\rbrack})(i_f-i_Ff/−Sfl=Sf/(1+i[360Actual][360Actual])(if−i)Sf/_{f/Sf/ is the spot rate with Gthe base currenor anINR the foreign currenor em f /em .Sf/em f /em .S_{f/ em f /em .Sf/ per Exhibit 1 is 79.5093, i f is equto 7.52% ani is equto 5.43%.With Gthe base curren(i.e. the “mesticurrency) in the INR/Gquote, substituting in the relevant base currenvalues from Exhibit 1 yiel the following:Ff/Sf/79.5093([360360]1+0.0543[360360])(0.0752−0.0543)F_{f/-S_{f/=79.5093(\frac{\lbrack{\splaystyle\frac{360}{360}}\rbrack}{1+0.0543\lbrack{\splaystyle\frac{360}{360}}\rbrack})(0.0752-0.0543)Ff/−Sf/=79.5093(1+0.0543[360360][360360])(0.0752−0.0543)Ff/Sf/79.5093(11.0543)(0.0752−0.0543)F_{f/-S_{f/=79.5093(\frac1{1.0543})(0.0752-0.0543)Ff/−Sf/=79.5093(1.05431)(0.0752−0.0543)Ff/Sf/1.576F_{f/-S_{f/=1.576Ff/−Sf/=1.576考点 利率平价公式的计算.解析 CovereIRP:Ff/SflSf/[Actual360]1+iActual360])(if−iF_{f/-S_{fl=S_{f/(\frac{\lbrack{\splaystyle\frac{Actual}{360}}\rbrack}{1+i_lbrack{\splaystyle\frac{Actual}{360}}\rbrack})(i_f-i_Ff/−Sfl=Sf/(1+i[360Actual][360Actual])(if−i)其中，GBP代表的是本币，而INR代表的是外币，于是直接代入数字到上述公式中可得Ff/Sf/79.5093([360360]1+0.0543[360360])(0.0752−0.0543)F_{f/-S_{f/=79.5093(\frac{\lbrack{\splaystyle\frac{360}{360}}\rbrack}{1+0.0543\lbrack{\splaystyle\frac{360}{360}}\rbrack})(0.0752-0.0543)Ff/−Sf/=79.5093(1+0.0543[360360][360360])(0.0752−0.0543)Ff/Sf/79.5093(11.0543)(0.0752−0.0543)F_{f/-S_{f/=79.5093(\frac1{1.0543})(0.0752-0.0543)Ff/−Sf/=79.5093(1.05431)(0.0752−0.0543)Ff/Sf/1.576F_{f/-S_{f/=1.576Ff/−Sf/=1.576答案写的得很乱，建议用常规公式直接算
NO.PZ201512020800000101 具体原理是什么
NO.PZ201512020800000101 this is a test. pls ignore.
NO.PZ201512020800000101 我算出来时1.5839，都不对啊。F/S = （1+Rinr）/（1+Rgbp），算出来F等于81.0932，F-S就等于1.5839啊。 麻烦老师解答一下，谢谢
求得F，代入即可。