v <- seq(12, 1, -1)
q <- 1
for(i in v) {
q <- i * q
}
print(q)
## [1] 479001600
q2 <- seq(from = 20, to = 50, by = 5)
print(q2)
## [1] 20 25 30 35 40 45 50
factorial <- function(a,b,c){
x1 <- (-1*b + sqrt(b^2 - 4*a*c))/2*a
x2 <- (-1*b - sqrt(b^2 - 4*a*c))/2*a
print(paste("X1 = ",x1))
print(paste("X2 = ",x2))
}
factorial(10,100,50)
## [1] "X1 = -52.786404500042"
## [1] "X2 = -947.213595499958"