►
From YouTube: Hanneli Tavante - Science tools borrow Rust
Description
The reasons you need a software to perform calculations may vary, but if you come from a science or engineering background, you might need results to project electric circuits, process data or try to predict an output. There are several open source tools to help you with calculations - one of them is Octave, written mostly in C++.
“What if we rewrite some of this functions using Rust to see what happens?”
This talk will answer this question, showing an interesting journey to rewrite linear algebra functions, complex functions and structures often used into Digital Circuit processing or circuit schematics (such as FFT).
Topics:
Some inconveniences of C/C++
Rust as a possible solution to improve collaboration on tools like Octave
First big challenge - I don’t know math
Rewriting basic matrix functions with Rust
Some functions involving complex numbers and Rust
Attempts of FFT
Lessons learned on types, safety and Rust Language
Epilogue
---
For more go to https://rustfest.eu or follow us on Twitter: https://twitter.com/rustfest
Help us caption & translate this video!
http://amara.org/v/2FiQ/
A
A
So
this
presentation
is
about
rewriting
some
frequently.
Is
it
codes
in
a
tool
called
octave
if
you're
not
familiar
with
octave
I'm,
going
to
talk
about
this
tool
in
the
further
slides,
but
as
a
bonus?
Even
if
you,
if
you
are
not
working
directly
with
rust,
I
expect
that
by
the
end
of
this
talk,
you
have
a
general
idea
about
transforming
some
math
concepts
into
your
code
in
a
very
expressive
way
or
in
a
more
intuitive
way.
This
is
a
quick
disclaimer.
A
A
I
leave
you
some
reference,
so
you
can
actually
get
the
code
from
github
and
run
it
there's
going
to
be
some
mathematics,
I
know
it's
the
last
talk
of
the
day,
so
please
hold
on
keep
form
I
think
nobody
is
going
to
be
scared,
the
math
that
that
there
is
at
this
presentation
and
to
help
us
to
keep
form
until
the
dinner
time.
We
are
going
to
see
some
cat
gifts
because
it
gives
her
nice
so
a
quick
agenda.
A
Let's
start
talking
about
some
training
choosing
science
training
tools
in
science
are
becoming
very
popular,
and
this
is
kind
of
the
motivation
oops.
This
is
right
here
all
right.
This
is
kind
of
you
know.
Probably
you
have
contact
with
some
of
these
tools
based
on
Coursera
I.
Think
everybody
here
doesn't
know
doesn't
know.
What's
Coursera
doesn't
I
mean
cursor
is
very
popular.
Edx
is
another
popular
too.
So
this
this
platforms.
A
It's
pretty
exciting
and
I
think
I'm
having
some
trouble
with
yeah,
and
this
is
like
bringing
topics
such
as
machine
learning,
data
analysis,
big
data
to
people
who
are
not
tightly
connected
with
research,
which
is
pretty
interesting,
and
so
I
was
talking
to
some
students
at
the
university
that
I
graduated
at
maybe
last
year,
something
like
that,
and
they
were
telling
me
that
they
use
some
of
these
tools
to
help
them
with
mathematics.
So
one
one
of
these
famous
tools
is
Octavius.
Pretty
much
has
this
pretty
much?
A
But
if
I
went
to
octave
I
would
spend
a
lot
of
time
with
things
that
had
nothing
to
do
with
the
problem
that
I
had
just
so,
for
example,
I
was
getting
a
dangling
pointer
at
some
point
or
I
forget
should
deallocate
memory
and
everything
blows
up,
so
that
was
kind
of
frustrating
to
me.
I'm
not
saying
like
this.
A
This
happens
to
everybody,
but
I,
have
you
know
a
very
hard
and
difficult
time
or
if
this
stool
and
pretty
much
all
the
other
tools
who
are
open
source
would
provide
me
the
same
problem
so
I
really
like
the
top,
but
I
had
some
trouble
with
that.
I
had
trouble
to
extend
the
functionalities
of
the
functionalities
of
the
tool
and
I
was
surprised
because
when
I
asked
the
students,
if
they
liked
the
show
they
said
yes,
but
we
have
trouble
to
express
Matamata
thematics
widths
in
c++
in
octave.
A
So
that's
the
case
that
you
end
up
losing
a
lot
of
time
with
something
else,
rather
than
spending
time
with
her
problem.
And
then
we
started
to
think
about
the
possibilities
that
we
could
adopt
to
resolve
it
and
I
was
studying
in
Rus.
At
that
time
version
1.0
was
just
released
and
then
I
asked
her.
That
now
have
you
tried
rust
and
they
asked
know.
What's
rust
and
then
I
said
no
I
think
you
can
borrow
some
knowledge.
A
Oh,
is
it
safe,
please
laughs,
but
now
no
jokes
I
spoke
to
them
about
trust
and
they
accepted
you
to
try
the
language
and
see
if
it
could
help
them
with
the
problems
that
they
were
facing
so
octave,
if,
if
you're
not
familiar
with
the
two,
is
pretty
much
useful
for
machine
learning
for
data
analysis
for
I
know,
maybe
something
some
calculations
that
it
needs
to
do
with
computer
vision
and
things
like
this.
It's
useful
for,
for
example,
operations
with
matrices
boarding,
charts
and
statistics
and
several
other
areas
that
have
some
heavy
Galatians
said.
A
You
know
you
don't
want
to
resolve
everything
by
hand.
A
good
point
about
octave
is
that
it
is
open
source
and,
of
course
it's
pretty
cool
because
you
can,
you
know
it
easily
extends
the
existing
libraries.
You
can
submit
patches
and
things
like
this,
and
this
is
this-
is
pretty
much
what
happens
when
you're
doing
research.
There
is
a
point
that
you
need
to
add
your
code
to
an
existing
tool.
So,
for
example,
there
are
lots
of
external
packages
that
people
built
for
octave
and
they
are
available
github
or
any
other
source
repo.
A
And
then
you
can
easily,
you
know,
add
your
contributions
to
the
tool
which
is
which
is
amazing,
but
sometimes
it's
not
easy
to
handle
the
format
that
the
two
is
available
for
you.
Let's
discuss
something
like
this:
a
very
famous
data
structure.
Is
this
one?
It's
very
likely
that's
one
day
at
any
point
of
your
life,
you
receive
the
spreadsheet,
spreadsheets
and
a
spreadsheet
is
a
table,
so
we
have
to
handle
tables
or
better
matrices
in
several
scenarios.
A
Several
distinct
scenarios
right,
but
why
matrices
are
so
important
so
because
everybody
sends
me
spreadsheets,
no,
not
not
only
because
of
that
matrices
they
can
represent
us.
You
know
several
different
areas,
and
sometimes
you
are
not
aware
that
you
can
represent
something
with
from
matrix,
but
you
actually
can
so
I
guess
one
of
the
first
contacts
that
you
had
with
matrices.
A
What
at
high
school,
but
not
sometimes
not
even
in
mathematics,
math
classes
was
something
else
to
remember
this
law
here,
Ohm's
law,
you
have
this
circuit
and
then
you
know
you
have
the
voltage
and
then
you
have
this
relation
between
other
resistance
and
the
voltage,
and
then
you
can
make
this
even
more
sophisticated
I'm
happy
because
I
saw
dogs
about
circuits
today.
So
I
guess
nobody's
scared
of
this.
A
This
is
you
know,
very
simple
circuit,
and
then,
if
you
remember
it
is
oh
no,
even
if
you
failed
on
physics
class,
you
might
remember
something
like
a
circuit
with
voltages
and
fellows
for
the
resistance
by
the
way.
Those
are
the
future
flaws
and
QT
flaws
are
an
example
of
what
we
call
linear
systems
and,
for
example,
this
is
a
linear
system.
I
have
a
bunch
of
equations
and
you
have
to
resolve
this
equations,
find
a
value
for
every
variable
that
you
have
involved
in
the
system.
A
So
you
can,
you
know,
do
some
algebraic
work
and
figure
out
the
values
for
the
resistance
want
you
and
so
on,
but
for
linear
systems
there
is
an
alternative
representation
rather
than
this
one.
With
the
curly
brackets,
we
can
represent
them
as
a
matrix
and
there
are
lots
of
advantages
of
representing
linear
systems
as
matrixes
as
make
matrices.
We
can
apply
several
different
rules.
For
example,
there
is
what
it
called
determinants.
There
is
water
call,
I,
don't
know
several
different
rules
for
finding
properties
of
a
linear
system,
so
understanding
are
a
little
bit
about
matrix.
A
Matrices
helps
us
a
lot
to
resolve
linear
systems
and
their
linear
systems,
there's
a
structure
which
is
which
you
can
find
in
several
different
areas.
For
example,
let's
go
engineering,
I,
don't
know
environmental
engineering
how
the
environments
behaving
behaves
in
things
like
this,
and,
for
example,
this
is
part
of
the
code
that
you
have
to
represent
an
array
or
make
a
matrix
in
octave.
This
is
the
the
code
base
for
array
and
there's
a
class
called
matrix.
A
This
is
a
very
extensive
code.
It
has
around
500
lines,
something
like
that
and
it's
pretty
much
about
template
declaration,
so
suggested
a
student's,
so
Isaac
those
students
that
I
was
talking
last
year.
I
asked
them.
What
is
the
most
frequency
structure
that
he
used
in
octave
and
they
said
matrix
and
it's
very
most
of
the
cases
you
have
to
extend
the
matrix
to
implement
something
for
you
or
at
least
implement
some
sort
of
calculation
for
your
matrix.
So
this
is
them.
Why
don't
you
start
building
a
matrix
in
rust,
so
I
need
your
help.
A
A
A
If
you
have
rows,
you
have
goals,
and
there
is
something
inside
the
matrix
which
is
which
are
the
matrix
elements.
That
makes
sense-
and
this
is
you
know
this
is
simple.
This
is
the
very
first
step
that
you
might
have
before
trying
to
build
a
representation
of
a
matrix
right.
That
makes
a
lot
of
sense.
So
I
was
talking
to
the
students
and
we
came
up
with
this
brilliant
and
super
sophisticated
matrix
stripped,
but
we
started
discussing
something
else.
A
So,
for
example,
if
you
remember
your
math
classes,
when
you
multiply
mate
matrices,
can
you
multiply
any
matrix
with
any
other
matrix?
No,
there
is
a
row.
So
on
the
right
side,
you
have
a
matrix
with
2
rows
and
3.
Columns
on
the
left
side
have
a
matrix
with
3
rows
and
4
columns.
Can
we
multiply
this
matrix?
A
A
A
Can
we
we
can?
We
have
chief,
keep
checking
the
dimensions
every
time,
but
this
is
what
are
you
doing
suppose,
plus
because
of
the
templates
I
have
to
keep
checking
all
the
time.
This
is
not
very
convenient.
How
can
we
prove
this
code?
We
one
chance
some
behavior
into
a
structure
based
on
dimension,
so
this
is
a
bad
representation
under
that
I
said
create
a
trait
called
I
mentioned.
A
That
makes
a
lot
of
sense
because
you
can
add
all
the
behavior
base
it
on
the
dimension
of
a
matrix
inside
this
code,
and
this
is
going
to
be
much
more
explicit
when
you
give
row
some
matrix
with
a
certain
dimension.
Bras
can
determine
at
compile
time
if
it's
going
to
work
or
not.
You
don't
even
have
to
spend
time
trying
to
you
know,
perform
an
invalid
operation
with
matrix
with
dimensions
that
do
not
match.
This
is
pretty
interesting
and
then
we
can
also
add
an
extra
step.
I
was
reading,
something
on
the
internet.
A
A
A
Yeah
but
there's
I
mean
there
is
no
matrix
without
a
name
set.
No,
so
this
kind
of
thing
doesn't
exist
and
this
author,
he
was
saying
something
like
well.
You
should
always
have
an
elements
representation
which
you
can
do
by
using
phantom
data,
or
you
can
create
your
own
type
of
matrix
elements,
kind
of
doesn't
matter,
but
this
representation
of
a
matrix
is
kind
of
much
better
and
much
more
well-structured
than
our
initial
presentation,
where
we
had
rows
columns
and
something
pretty
vague,
fort
data.
A
A
An
extra
challenge.
Can
you
think
a
Coast
represent
square
matrices?
Does
it
make
sense
to
have
a
code
for
square
matrices
in
terms
of
the
common
and
most
uses
mathematical
properties
that
have
four
matrices?
Yes,
it
makes
a
lot
of
sense
to
create
your
own
specialized
squared
matrix
based
on
a
matrix
itself.
So
this
is
pretty
cool.
A
You
can
fix
the
dimensions,
so
the
dimensions
for
rows
and
column
are
always
equal,
and
then
you
can
derive
a
bunch
of
a
bunch
of
code
from
this
initial
code,
so
this
is
pretty
convenient
for
us
and
with
that
I
hope.
You
had
a
very
quick
overview
of
why
linear
algebra
is
important
and
why
matrix
are
important
and
I
really
hope
that
you
could
have
followed
the
the
main
idea
of
how
we
get
a
mathematical
concept
and
we
apply
this
truss.
A
Another
important
structure
that
students
or
researchers
use
a
lot
complex
numbers.
If
you
come
from
an
engineering
backgrounds,
you're
very
likely
to
have
seeing
a
lot
of
complex
numbers.
Do
you
know
why
there
is
a
reason
for
people
keep
using
complex
numbers,
but
do
you
know
why
I
mean
a
good
explanation
because
they
like
it?
Oh
because
there
is
an
imaginary
part,
and
this
is
cool.
A
A
A
A
A
So
let's
start
from
the
beginning,
integers
I'm
happy
because
at
the
very
first
keynote
on
this
morning,
we
we
were
talking
about
in
integers
and
real
numbers,
but
we
didn't
reach
the
complex
numbers
which
are
so
important.
So
when
you
add
an
integer
to
another
integer,
what
is
the
output
an
integer
glad
it's
an
integer,
so
when
you're
talking
about
the
add
operation
between
two
integers,
the
output
is
equal
to
input
in
terms
of
type.
But
this
is
not
true
when
you're
talking
about
the
division,
if
you
divide
an
integer
by
an
entry,
what
happens?
A
You
may
not
have
one
integer
as
a
result?
May
not?
There
is
a
chance.
It
is,
but
there's
a
chance.
It's
not!
So
what
happens
here
is
like
you
have
more
restrictive
sets
and
more
wide
sets.
So
if
you
check
in
at
this
picture,
which
I
added
that
the
the
letters
that
correspond
to
it's
to
reach
a
set
by
hands,
it's
pretty
ugly
I'm,
sorry
about
that.
But
if
you
look
there
is
a
set
involving
all
the
other
sets
which,
if
you're
not
familiar
with
this
this
this
all
the
sets
you
can
easily.
A
A
So
if
you
get
real
number
and
if
you
divide
subtract,
multiply
or
add
you
always
get
a
real
numbers
and
output,
what
happens
if
you
divide
by
zero
zero?
Is
an
exclusion?
Don't
go
see
there
that
there
is
something
even
more
generic
than
dividing
by
zero?
Is
there
any
other
operation
that
you
can
think
of?
Somebody
already
told
the
answer
in
the
audience?
Yes,
there
is
an
operation.
A
That's
you
provide
a
real,
was
an
input
and
too
much
nods
end
up
what
we
reveal
as
output
this
one
when
you're
looking
for
the
square
root
of
a
number,
if
you're
looking
for
the
square
root
of
-4,
the
result
is
not
going
to
be
a
real
number,
so
this
is
set
so
the
thing
the
thing
here
is
like
complex
numbers:
they
are.
They
have
this
property
that
we
we
say
they
are
closed
for
the
most
common
of
jabrai
operations.
A
So
if
somebody
says
that
oh
this
operation
is
closed,
you
can
be
sure
that
the
input
is
going
to
be
as
the
same
type
of
the
output,
and
this
is
very
convenient
for
functional
programming.
For
example,
if
we're
talking
about
types
the
front
here
in
the
front
already
talked
about
the
types,
this
is
very
convenient
because
you
can
be
100%
sure
of
the
output,
the
type
of
the
output-
and
you
can,
you
know,
derive
lots
of
things
on
type
theory
about
that.
A
Can
we
express
this
property
with
code?
Yes,
it's
not
difficult.
For
example,
you
can
have
this
struct
here
called
complex
number
that
has
the
real
and
the
imaginary
part,
and
all
the
mathematical
operations
are
going
to
result
in
a
complex
number.
Something
like
this.
This
is
pretty
much
straightforward
and
convenient,
but
why
is
this
important?
Well,
if
you
think
about
creating
a
trait
called
closed
set,
you
can
add
this
trait
to
existing
types
and
make
sure
close
operations
in
a
certain
scope,
which
is
very
convenient
for
several
operations
in
engineering,
sometimes
in
engineering.
A
You
want
to
be
sure
that
the
output
is
going
to
be
equal,
the
inputs.
This
is
much
true
for
cultural
systems,
engineering
for
digital
signal
processing,
and
things
like
this.
This
is
very
convenient,
so
think
about
it.
Rose
is
very
powerful
because
we've
a
trait
you
can
add
a
behavior
given
a
certain
scope,
even
for
existing
types.
So
you
don't
have
to
you
know,
create
new
types
just
represent
that,
and
this
is
very
convenient
for
engineering.
Why
is
anybody
doing
that?
I
mean
there's?
A
Probably
somebody
doing
that,
but
the
biggest
tools
that
we
have
for
engineering
they
see
you
using.
You
know
just
imperative
programming
with
some
languages
that
sometimes
you
cannot
have
this
level
of
you
cannot
be
very
expressive
with
with
the
tools
of
the
language
provides
to
you.
I,
don't
know
about
you,
but
I
was
so
excited
when
we
did
that
that
I
started
rewriting
some
codes
that
we
had
for
control
systems,
and
this
is
very
convenient.
It
just
creates
a
trait
and
add
to
an
existing
type.
A
A
A
A
For
me,
it
was
pretty
sad
to
change.
My
focus.
I
was
trying
to
solve
a
problem.
How
can
I
optimize
this
trails
of
the
circuits
and
I
should
resolve
this
Andersson
days
and
from
time
to
time?
I
was
losing
focus,
trying
to
solve
dangling
pointers
or
something
wrong
that
I
did
in
the
middle
of
the
cold.
So
that
was
not
very
productive.
To
me,
that
was
kind
of
consuming
time
from
my
research
is
something
that
should
be
draining
my
time
of
that
research
and
I
had
a
very
difficult
time
to
express
some
sorts
of
types.
A
Sometimes
I
wanted
to
add
some
behavior
to
an
existing
type
so
had
to
create
another
class
with
you
know
another
set
of
descriptions,
and
things
like
this
and
with
Russ
I,
don't
have
this
problem
anymore
and
one
last
thing
like
when
I
learned
how
to
program
object-oriented
programming.
The
examples
were
like
with
animals
so
like
class,
animal
and
then
class
dog
extends,
but
nobody
told
me
how
to
transform
mathematics,
which
is
a
useful
thing
for
engineering
and
cold.
A
So
nobody
tells
me
like
hey
here's
a
I,
don't
know
a
different
differential
equation,
and
now
you
get
this
equation
and
transform
this
into
see
people's
they
started
saying.
Oh
now,
you
have
to
use
numerical
methods
because
you
cannot
represent
that.
Of
course
you
can
represent
that
maybe
I
was
just
using
the
wrong
parroting
and
the
wrong
language,
but
there
is
a
way
to
represent
this
mathematical
structures
in
a
more
natural
and
straightforward
way
and
I
found
out
that
Russ
was
really
helpful.
She
solved
most
of
this
problems
that
I
was
having
and
well.
A
Last
but
not
least,
point
I
was
so
happy.
That's
the
compiler.
The
compiler
was
telling
me
something
that
something
was
wrong
before
I
run
it.
Something
something
very
frustrating
to
me
is
like
octave
can
be
slow
for
some
operations
and
I
was
running
an
operation
in
octave
and
boom
run
time.
A
after
ten
minutes,
I
wanted
to
cry:
I
lost
10
minutes
to
get
a
runtime
error.
A
One
last
thing
about
this:
runtime
errors
is
like
I,
don't
have
this
responsibility
anymore
I,
just
you
know,
throw
this
responsibility
to
the
compilers
in
certain
cases,
of
course,
like
there
are
cases
which
you
can't
do
anything
and
one
conclusion
that
I
took
from
there
talking.
Today's
students
is
like
well,
why
don't
you
have
many
people
join
that,
so
we
have
concepts
and
mindsets
that,
based
on
this
talk
that
can
be
applied
to
other
areas,
for
example
the
idea
of
closed
at
set
it's
a
mathematical
concept,
but
we
can
apply
that
she
I
don't
know.
A
A
Sometimes
I
see
lots
of
young
people
asking.
Why
do
you
have
to
study
calculus
and
all
these
things,
and
sometimes
it's
not
obvious?
How
could
you
be
applying
these
concepts
in
you
know
in
real
life
problems
in
maybe
problems
of
web
web
developments
or
I
know
payments
or
products,
and
things
like
this,
but
if
we
had
a
more
convenient
way
to
describe
mathematics
angel
programming,
maybe
we
can
spread
this
knowledge
across.
You
know
other
areas
of
the
industry,
and
maybe
you
can,
you
know,
make
them
more
popular.
A
Well,
that
happens.
Feo
happens
so
I
shared
the
good
part
and
I'm
going
to
share
the
things
that
went
wrong
or
almost
wrong.
We're
almost
destroyed
my
project.
So
when
I
started
learning
about
rust,
I
said
no
there's
this
thing
called
unsafe
and
I
probably
will
never
use
that.
But
if
you
need
to
integrate
rust
with
another
language,
sometimes
in
each
you
use
unsafe
and
I
found
myself
like
every
time
that
I
had
a
problem.
I
just
type
at
this
magical
word
at
the
beginning,
and
things
were
working:
okay,
it's
not
working
or
safe.
A
Let's
try
and
save
and
it
works.
This
is
not
a
good
idea.
I
mean
at
all
it's
a
terrible
idea.
So
sometimes,
yes,
if
you
are
doing
a
fall
back
to
C
or
any
other
language,
Python
anything
else,
there
is
no.
You
know
you
can
have
your
own
safe
methods
or
your
own
safe
function,
but
you
should
not
expose
that.
A
So
if
you
have
something
unsafe,
do
dissing
sites
or
safe
methods
and
slide
them
at
at
hand
all
the
possible
problems
that
you
might
end
up
with
and
I'm
telling
this,
because
I
was
aware
of
this,
but
you
know
my
body
refused
that
you
do
because
there
was
much
more
convenient
just
to
type
them
safe
until
somebody
uses
the
library
and
say:
oh
everything
is
broken
and
I
was
like
why
it
works
on
my
machine
so
make
things
you
know
safer.
It's
it's
a
good
advice.
A
There
was
another
example
again
unsafe
and
mute:
oh,
if
not,
if
it's
not
working
just
at
mute
and
everything
will
be
fine.
This
is
awful
like
and
I
did
it's
lots
of
time.
So,
if
you're
familiar
with
a
fast
Fourier,
transform
and
FF
tea,
basically
the
idea
of
a
fast
Fourier
transform
is
get
a
signal
which
is
represented
according
the
time
domain
and
transform
this
to
the
frequency
domain,
so
you're
doing
a
transformation.
That's
why
you
can
see
on
the
screen
at
this
first
line
here,
so
you
have
a
function
called
from
time.
A
A
So
I
was
having
I
was
using
some
library
since
I
was
having
trouble,
because
you
know
my
foot
was
not
working.
So
I
decided
to
pass
a
mutable
instance
which,
like
I'm,
happy
with
that,
but
in
terms
of
concepts
it
doesn't
make
sense.
Your
sampling
is
something
immutable.
Once
you
have
the
same
thing
of
a
signal,
this
is
never
going
to
change,
so
doesn't
make
sense
in
terms
of
coding.
So
I
was
writing
a
convenient
codes
in
terms
of
programming,
but
it's
a
code
that
doesn't
make
sense
at
all
in
terms
of
representation.
A
So
when
you're
going
to
write
your
tools
for
science
or
engineering,
think
about
that
think
about
oh
wait:
does
it
make
sense?
It
doesn't
make
sense
to
represent
a
mutable
signal
with
mute
for
obvious
reasons,
it's
much
better
to
remove
the
mutant
and
actually
handle
your
struct
into
the
appropriate
way.
Not
you
know
base
it
into
the
easy
way
so
I'd
like
to
leave
some
references
here.
I
was
kind
of
happy
to
see
that
that
servo
has
a
oklets
which
is
a
tool
for
linear,
linear,
algebra
and
I
was
reading
the
source
code.
A
The
second
line
is
the
ng
array,
so
it
can
actually
find
some
structures
that
are
pretty
much
the
same
as
the
ones
that
we
saw
at
the
beginning
of
this
presentation.
You
are
going
to
see
that
instead
of
phantom
data,
they
are
using
a
default
matrix
instead,
but
they
have.
You
know
a
bunch
of
interesting
approaches
to,
though
any
kind
of
array
of
n
dimensions.
A
There
is
also
some
papers
about
rest
types
and
how
can
how
can
how
like
how
these
types
can
help
you?
Oh
if
science
tools
this
it's
the
FTP
link
that
if
you
there
and
of
course,
some
some
well-known
references
like
the
gnome
like
the
the
docs,
and
there
is
one
very
interesting
and
probably
also
well-known
one
I,
don't
know
if
I
added
here
no
I
didn't
I
can
adds
later.
It
is
a
tool
about
FFT
in
rust.
A
So
what
else?
So
some
special
thanks
to
Florian
I'd
like
to
have
a
picture
of
florian,
saying
no,
no
more
puns,
but
maybe
next
time
and
for
Bruno
from
Brazil
Bruno
is,
is
also
helping.
The
Brazilian
community
de
brest,
Brazilian
community
and
for
thought
works
because
those
works
has
been
hosting
most
of
our
meetups
for
my
mentor
Daniel
and
for
these
people
who
provide
me
gifts
and,
of
course,
for
the
Brazilian
risk
community,
and
thank
you
and
I
don't
know.
If
have
time
for
questions,
we
don't
have
time
for
questions.