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[求助] 1stopt提示函数字符串有误，真心求教！

Parameters x,y;
Function -exp((25484407*x)/100-(480703*y)/25)*exp((34244301*x)/100-(149058*y)/5)*exp((6493256*x)/25-(664202*y)/25)*((21425433*exp((480703*y)/25-(25484407*x)/100)*exp((149058*y)/5-(34244301*x)/100)*exp((664202*y)/25-(6493256*x)/25))/(25*(exp((42*y)/5-(9649*x)/100)+exp((269*y)/25-(14261*x)/100)+exp((4313*y)/100-(10541*x)/25))^5952)-(5952*exp((480703*y)/25-(25484407*x)/100)*exp((149058*y)/5-(34244301*x)/100)*exp((664202*y)/25-(6493256*x)/25)*((9649*exp((42*y)/5-(9649*x)/100))/100+(14261*exp((269*y)/25-(14261*x)/100))/100+(10541*exp((4313*y)/100-(10541*x)/25))/25))/(exp((42*y)/5-(9649*x)/100)+exp((269*y)/25-(14261*x)/100)+exp((4313*y)/100-(10541*x)/25))^5953)*(exp((42*y)/5-(9649*x)/100)+exp((269*y)/25-(14261*x)/100)+exp((4313*y)/100-(10541*x)/25))^5952;
exp((25484407*x)/100 - (480703*y)/25)*exp((34244301*x)/100 - (149058*y)/5)*exp((6493256*x)/25 - (664202*y)/25)*((378039*exp((480703*y)/25 - (25484407*x)/100)*exp((149058*y)/5 - (34244301*x)/100)*exp((664202*y)/25 - (6493256*x)/25))/(5*(exp((42*y)/5 - (9649*x)/100) + exp((269*y)/25 - (14261*x)/100) + exp((4313*y)/100 - (10541*x)/25))^5952) - (5952*exp((480703*y)/25 - (25484407*x)/100)*exp((149058*y)/5 - (34244301*x)/100)*exp((664202*y)/25 - (6493256*x)/25)*((42*exp((42*y)/5 - (9649*x)/100))/5 + (269*exp((269*y)/25 - (14261*x)/100))/25 + (4313*exp((4313*y)/100 - (10541*x)/25))/100))/(exp((42*y)/5 - (9649*x)/100) + exp((269*y)/25 - (14261*x)/100) + exp((4313*y)/100 - (10541*x)/25))^5953)*(exp((42*y)/5 - (9649*x)/100) + exp((269*y)/25 - (14261*x)/100) + exp((4313*y)/100 - (10541*x)/25))^5952;
如上两个方程，我在点集运行时提示函数字符串有误，求教各位大神