ction(t){var n=t[0],r=t[1],a=t[2];return Math.sqrt(n*n+r*r+a*a)},e.len=e.length,e.squaredLength=function(t){var n=t[0],r=t[1],a=t[2];return n*n+r*r+a*a},e.sqrLen=e.squaredLength,e.negate=function(t,n){return t[0]=-n[0],t[1]=-n[1],t[2]=-n[2],t},e.inverse=function(t,n){return t[0]=1/n[0],t[1]=1/n[1],t[2]=1/n[2],t},e.normalize=function(t,n){var r=n[0],a=n[1],e=n[2],u=r*r+a*a+e*e;return u>0&&(u=1/Math.sqrt(u),t[0]=n[0]*u,t[1]=n[1]*u,t[2]=n[2]*u),t},e.dot=function(t,n){return t[0]*n[0]+t[1]*n[1]+t[2]...