globals [placeholder largeroot smallroot]

to sum-me
let total 0
let i 0
repeat N [ 
set i i + 1
set total total + i
]
set placeholder total
end

to calcquad
 let disc b * b - 4 * a * c
 ifelse disc < 0 
 [set largeroot "imaginary"
 set smallroot "imaginary"]
 [ let r1 (0 - b + sqrt disc) / (2 * a)
 let r2 (0 - b - sqrt disc) / (2 * a)
 ifelse r1 >= r2
 [set largeroot r1
 set smallroot r2]
 
 [set largeroot r2
  set smallroot r1]
 
 
    ]
    
    
    end