x-seq(-1,1,length=10)
y-seq(-1,1,length=10)
a-matrix(c(1,2,2,1),2,2)
b-matrix(c(2,1,1,2),2,2)
fv-function(x,y) {
m-x*a+y*b
t-m[1,1]+m[2,2]; d-m[1,1]*m[2,2]-m[1,2]^2
return((t-sqrt(t^2-4*d))/2)
}
gv-function(x,y) {
t-x*(a[1,1]+a[2,2])+y*(b[1,1]+b[2,2])
Its a FAQ:
http://hermes.sdu.dk/Rdoc/faq.html#Why%20does%20outer()%20behave%20strangely%20with%20my%20function%3f
On 9/10/07, Jan de Leeuw [EMAIL PROTECTED] wrote:
x-seq(-1,1,length=10)
y-seq(-1,1,length=10)
a-matrix(c(1,2,2,1),2,2)
b-matrix(c(2,1,1,2),2,2)
fv-function(x,y) {
