Add default value for c

JuliaIntervals · Jul 18, 2018 · 03cf261 · 03cf261
1 parent cfcb7da
commit 03cf261
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/slopes.jl b/src/slopes.jl
@@ -3,7 +3,7 @@ using IntervalArithmetic, ForwardDiff
 import Base: +, -, *, /, ^, sqrt, exp, log, sin, cos, tan, asin, acos, atan
 import IntervalArithmetic: mid, interval
 
-function slope(f::Function, x::Interval, c::Number)
+function slope(f::Function, x::Interval, c::Number = mid(x))
     f(slope_var(x, c)).s
 end