Plot f(x) = x^(1/5)
Dear Steven, Well, the values x^(1/5) are complex-valued (not real-valued) when x is negative. Did you want to plot the absolute value of x^(1/5) instead? Mark Mark Daniel Ward, Ph.D. Associate Professor and Undergraduate Chair Department of Statistics Purdue University 150 North University Street West Lafayette, IN 47907-2067 mdw at purdue.edu phone: (765) 496-9563
On 5/17/16 8:44 AM, Steven Stoline wrote:
Dear All: I am trying to plot the function f(x) = x^(1/5) for x=seq(-2,2,0.01). It give me only the plot of f(x) for the positive part of x. I checked the values of f(x), it is NaN for all negative values of x. *this is my code:* x<-seq(-2,2,0.01) y<- (x)^(1/5) plot(x,y, type="l", lwd=3, xlab = " ", ylab = " ", col="blue") abline(v=0, col="gray", lty=2, lwd=3) abline(h=0, col="gray", lty=2, lwd=3) any help will be appreciated. with many thanks steve