# Revision history [back]

### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3)

limit(f,x=3,dir='below')

UnboundLocalError: local variable 'l' referenced before assignment

### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3)

limit(f,x=3,dir='below')

limit(f,x=3,dir='below')
UnboundLocalError: local variable 'l' referenced before assignmentassignment


### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3)

limit(f,x=3,dir='below')

UnboundLocalError: local variable 'l' referenced before assignment


### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3)

limit(f,x=3,dir='below')


UnboundLocalError: local variable 'l' referenced before assignment assignment

### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3)

limit(f,x=3,dir='below')


UnboundLocalError: local variable 'l' referenced before assignment

 6 retagged tmonteil 25328 ●29 ●180 ●472 http://wiki.sagemath.o...

### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3)

limit(f,x=3,dir='below')


UnboundLocalError: local variable 'l' referenced before assignment

 7 None John Palmieri 6582 ●18 ●57 ●146 http://www.math.washin...

### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3)

limit(f,x=3,dir='below')


UnboundLocalError: local variable 'l' referenced before assignment

 8 None John Palmieri 6582 ●18 ●57 ●146 http://www.math.washin...

### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3)

limit(f,x=3,dir='below')


UnboundLocalError: local variable 'l' referenced before assignment

 9 None John Palmieri 6582 ●18 ●57 ●146 http://www.math.washin...

### Why is Sage calling 1 a variable?

x = var('x') f = 1/(x-3) Consider

x = var('x')
f = 1/(x-3)

limit(f,x=3,dir='below')


UnboundLocalError: local variable 'l' referenced before assignment

 10 None John Palmieri 6582 ●18 ●57 ●146 http://www.math.washin...

### Why is Sage calling 1 a variable?

Consider

x = var('x')
f = 1/(x-3)

limit(f,x=3,dir='below')


UnboundLocalError: local variable 'l' referenced before assignment