diff --git a/src/integrals.jl b/src/integrals.jl
index 5e2e5907..de1b4633 100644
--- a/src/integrals.jl
+++ b/src/integrals.jl
@@ -74,7 +74,7 @@ function _integral(A::QuadraticSpline{<:AbstractVector{<:Number}}, idx::Number,
     α, β = get_parameters(A, idx)
     uᵢ = A.u[idx]
     Δt = t - A.t[idx]
-    Δt_full = (A.t[idx + 1] - A.t[idx])
+    Δt_full = A.t[idx + 1] - A.t[idx]
     Δt * (α * Δt^2 / (3Δt_full^2) + β * Δt / (2Δt_full) + uᵢ)
 end
 
diff --git a/src/interpolation_utils.jl b/src/interpolation_utils.jl
index 748cf662..2d1c6432 100644
--- a/src/interpolation_utils.jl
+++ b/src/interpolation_utils.jl
@@ -81,9 +81,9 @@ function quadratic_spline_params(t::AbstractVector, sc::AbstractVector)
     k[(end - 2):end] .= t[end]
     k[4:(end - 3)] .= t[2:(end - 2)]
 
-    # Create and solve linear system Ac = u, where:
+    # Create linear system Ac = u, where:
     # - A consists of basis function evaulations in t
-    # - c are the 1D control points 
+    # - c are 1D control points 
     n = length(t)
     dtype_sc = typeof(t[1] / t[1])