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Code Issues Releases Activity

Fix FourVector task

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Mo8it 2022-04-08 22:42:43 +02:00
parent 49096484ae
commit c30cb07b53
1 changed files with 9 additions and 7 deletions
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16
Day_5/Tasks_day_5.jl
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@ -1,5 +1,5 @@
### A Pluto.jl notebook ### ### A Pluto.jl notebook ###
# v0.18.4 # v0.19.0
using Markdown using Markdown
using InteractiveUtils using InteractiveUtils
@ -53,7 +53,7 @@ z - z'
$v * u = ct * ct' - x * x' - y * y' - z * z'$ $v * u = ct * ct' - x * x' - y * y' - z * z'$
$|v|^2 = ct^2 - x^2 - y^2 - z^2$ $|v|^2 = (ct)^2 - x^2 - y^2 - z^2$
You should implement $|v|^2$ as a function called `length_squared`. You should implement $|v|^2$ as a function called `length_squared`.
""" """
@ -66,20 +66,22 @@ begin
# To override a predefined function of a package, the function has to be imported # To override a predefined function of a package, the function has to be imported
# In this case, the functions are from the package `Base` which has Julia's builtin functions # In this case, the functions are from the package `Base` which has Julia's builtin functions
import Base: +, -, *, ^ import Base: +, -, *, ==
(+)(v::FourVector, u::FourVector) = FourVector( +(v::FourVector, u::FourVector) = FourVector(
v.ct + u.ct, v.ct + u.ct,
v.x + u.x, v.x + u.x,
v.y + u.y, v.y + u.y,
v.z + u.z v.z + u.z
) )
#(-)(v::FourVector) = ? # -(v::FourVector) = ?
#(-)(v::FourVector, u::FourVector) = ? # -(v::FourVector, u::FourVector) = ?
#(*)(v::FourVector, u::FourVector) = ? # *(v::FourVector, u::FourVector) = ?
# ==(v::FourVector, u::FourVector) = ?
end end
# ╔═╡ 4b8da4d9-c880-405e-859e-81f5884d29bf # ╔═╡ 4b8da4d9-c880-405e-859e-81f5884d29bf