please give me matlab cod about this equ

if f(x)=x^2+x-1 ,&p f(x)<3 $x have normal with varianse 2 & average 0 p f(x)<0 for n=100 , n=1000

[Stephen23]

http://de.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer