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initialization of temp array in ode45_* #584

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Merged
merged 1 commit into from
Mar 14, 2012
Merged

initialization of temp array in ode45_* #584

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4 changes: 2 additions & 2 deletions jl/ode.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -208,7 +208,7 @@ function ode45_dp(F::Function, tspan::AbstractVector, x0::AbstractVector)

# k_ needs to be initialized as an Nx7 matrix where N=number of rows in x
# (just for speed so octave doesn't need to allocate more memory at each stage value)
k_ = zeros(length(x),7)
k_ = zeros(eltype(x), (length(x),7))

# Compute the first stage prior to the main loop. This is part of the Dormand-Prince pair caveat
# Normally, during the main loop the last stage for x[k] is the first stage for computing x[k+1].
Expand Down Expand Up @@ -310,7 +310,7 @@ function ode45_fb(F::Function, tspan::AbstractVector, x0::AbstractVector)

# k_ needs to be initialized as an Nx6 matrix where N=number of rows in x
# (just for speed so octave doesn't need to allocate more memory at each stage value)
k_ = zeros(length(x),6)
k_ = zeros(eltype(x), (length(x),6))

while (t < tfinal) & (h >= hmin)
if t + h > tfinal; h = tfinal - t; end
Expand Down