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0-dimensional (i.e. length-0) Vector and 0x0 Matrix
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{ | |
"cells": [ | |
{ | |
"metadata": { | |
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"cell_type": "code", | |
"source": "VERSION", | |
"execution_count": 1, | |
"outputs": [ | |
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"data": { | |
"text/plain": "v\"1.7.0-DEV.1049\"" | |
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} | |
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}, | |
{ | |
"metadata": { | |
"trusted": false | |
}, | |
"cell_type": "code", | |
"source": "v = zeros(0)", | |
"execution_count": 2, | |
"outputs": [ | |
{ | |
"data": { | |
"text/plain": "Float64[]" | |
}, | |
"execution_count": 2, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": false | |
}, | |
"cell_type": "code", | |
"source": "v + v", | |
"execution_count": 3, | |
"outputs": [ | |
{ | |
"data": { | |
"text/plain": "Float64[]" | |
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"execution_count": 3, | |
"metadata": {}, | |
"output_type": "execute_result" | |
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}, | |
{ | |
"metadata": { | |
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"cell_type": "code", | |
"source": "3v", | |
"execution_count": 4, | |
"outputs": [ | |
{ | |
"data": { | |
"text/plain": "Float64[]" | |
}, | |
"execution_count": 4, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": false | |
}, | |
"cell_type": "code", | |
"source": "A = zeros(0, 0)", | |
"execution_count": 5, | |
"outputs": [ | |
{ | |
"data": { | |
"text/plain": "0×0 Matrix{Float64}" | |
}, | |
"execution_count": 5, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": false | |
}, | |
"cell_type": "code", | |
"source": "A*v", | |
"execution_count": 6, | |
"outputs": [ | |
{ | |
"data": { | |
"text/plain": "Float64[]" | |
}, | |
"execution_count": 6, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": false | |
}, | |
"cell_type": "code", | |
"source": "B = zeros(3, 0)", | |
"execution_count": 7, | |
"outputs": [ | |
{ | |
"data": { | |
"text/plain": "3×0 Matrix{Float64}" | |
}, | |
"execution_count": 7, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": false | |
}, | |
"cell_type": "code", | |
"source": "B*v", | |
"execution_count": 8, | |
"outputs": [ | |
{ | |
"data": { | |
"text/plain": "3-element Vector{Float64}:\n 0.0\n 0.0\n 0.0" | |
}, | |
"execution_count": 8, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": true | |
}, | |
"cell_type": "code", | |
"source": "v = zeros(0)", | |
"execution_count": 1, | |
"outputs": [ | |
{ | |
"output_type": "execute_result", | |
"execution_count": 1, | |
"data": { | |
"text/plain": "Float64[]" | |
}, | |
"metadata": {} | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": true | |
}, | |
"cell_type": "code", | |
"source": "v'v", | |
"execution_count": 2, | |
"outputs": [ | |
{ | |
"output_type": "execute_result", | |
"execution_count": 2, | |
"data": { | |
"text/plain": "0.0" | |
}, | |
"metadata": {} | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": true | |
}, | |
"cell_type": "code", | |
"source": "using LinearAlgebra\ndot(v, v)", | |
"execution_count": 3, | |
"outputs": [ | |
{ | |
"output_type": "execute_result", | |
"execution_count": 3, | |
"data": { | |
"text/plain": "0.0" | |
}, | |
"metadata": {} | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": true | |
}, | |
"cell_type": "code", | |
"source": "w = Int64[]", | |
"execution_count": 4, | |
"outputs": [ | |
{ | |
"output_type": "execute_result", | |
"execution_count": 4, | |
"data": { | |
"text/plain": "Int64[]" | |
}, | |
"metadata": {} | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": true | |
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"cell_type": "code", | |
"source": "w'w", | |
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{ | |
"output_type": "execute_result", | |
"execution_count": 5, | |
"data": { | |
"text/plain": "0" | |
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"metadata": {} | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": true | |
}, | |
"cell_type": "code", | |
"source": "dot(w, w)", | |
"execution_count": 6, | |
"outputs": [ | |
{ | |
"output_type": "execute_result", | |
"execution_count": 6, | |
"data": { | |
"text/plain": "0" | |
}, | |
"metadata": {} | |
} | |
] | |
}, | |
{ | |
"metadata": { | |
"trusted": true | |
}, | |
"cell_type": "code", | |
"source": "", | |
"execution_count": null, | |
"outputs": [] | |
} | |
], | |
"metadata": { | |
"@webio": { | |
"lastCommId": null, | |
"lastKernelId": null | |
}, | |
"_draft": { | |
"nbviewer_url": "https://gist.github.com/c7c4f41124b10b4e882de23030dac7ed" | |
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"gist": { | |
"id": "c7c4f41124b10b4e882de23030dac7ed", | |
"data": { | |
"description": "0-dimensional (i.e. length-0) Vector and 0x0 Matrix", | |
"public": true | |
} | |
}, | |
"kernelspec": { | |
"name": "julia-1.7-depwarn-o3", | |
"display_name": "Julia 1.7.0-DEV depwarn -O3", | |
"language": "julia" | |
}, | |
"language_info": { | |
"file_extension": ".jl", | |
"name": "julia", | |
"mimetype": "application/julia", | |
"version": "1.7.0" | |
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"toc": { | |
"nav_menu": {}, | |
"number_sections": true, | |
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"toc_section_display": true, | |
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