# Welcome to R-DAVIS 2020 Week 1

# this is pretty neat

1 + 100

#r uses the order of operation 

3 + 5 *2

#use parenthesies to force order of operations 

(3 + 5)*2

3+5
3 + 5

#scientific notation 

2 / 10000

1e9 * 8

#functions in R 

sin(3.14)

log(3)

exp(0.5)

#nested functions, interpretted from the inside out 

sqrt(exp(4))

#comparisons in R 

#R can do logical comparisons 

1 == 1

1 == 3     

1 != 2     

#objects and assignments in R

x <- 1/4

log(x)

x <- 99

x <- x + 1

y <- x * 10

this_is_my_object <- 90     

log(this_is_my_object) #tab completion 

log(3, 10)

log(x = 3, base = 10) #the same as above 

log(10, 3)

log(base = 10, x = 3)

log(x = 10, base = 3)
log(aword)