Exercise 1

x = 3
y = 15 

sum<-x+y
sum
## [1] 18
diff<-y-x
diff
## [1] 12
product<-y*x
product
## [1] 45
quotient<-y/3
quotient
## [1] 5

Exercise 2

x = 2 
y = 3 

x^5 > y^4
## [1] FALSE

Exercise 3

vector <- c(22, 62, 148, 43, 129)
sum <- sum(vector)
vector/sum
## [1] 0.05445545 0.15346535 0.36633663 0.10643564 0.31930693

Exercise 4

nucleotides <- c("A", "T", "C", "G")
sort(nucleotides)
## [1] "A" "C" "G" "T"

Application written in R (R Core Team 2015) using the Shiny framework (Chang et al. 2015).

REFERENCES

Chang, W., J. Cheng, JJ. Allaire, Y. Xie, and J. McPherson. 2015. “Shiny: Web Application Framework for R. R Package Version 0.12.1.” Computer Program. http://CRAN.R-project.org/package=shiny.

R Core Team. 2015. “R: A Language and Environment for Statistical Computing.” Journal Article. http://www.R-project.org.