Last active
May 30, 2017 15:00
-
-
Save Fi3/8d33d87c8e33604de271852f83e1ebef to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
{ | |
"cells": [ | |
{ | |
"cell_type": "markdown", | |
"metadata": {}, | |
"source": [ | |
"### First we find H (haspower per block)\n", | |
"\n", | |
"$$ PROFIT = REWARD - COST$$\n", | |
"\n", | |
"$$ PROFIT = i \\times COST$$\n", | |
"\n", | |
"$$ REWARD = \\frac{R}{N}$$\n", | |
"\n", | |
"$$ COST = \\frac{R}{N(1+i)}$$\n", | |
"\n", | |
"$$ COST = H \\times c_e\\times e_{asic}$$\n", | |
"\n", | |
"$$ H\\times c_e\\times e_asic = \\frac{R}{N(1+i)}$$\n", | |
"\n", | |
"$$ H = \\frac{R}{N(1+i)(c_e\\times e_{asic})}$$\n", | |
"\n", | |
“finish \n”, | |
"### Then we find the efficiency\n", | |
"\n", | |
"$$ e_{pow} = \\frac{attackCost}{rewardPerBlock} = \\frac{0.5 \\times H \\times c_{asic} + H \\times c_e \\times e_asic}{\\frac{R}{N}}$$\n", | |
"\n", | |
"$$ e_{pow} = \\frac{H(1.01 \\times c_{asic} + c_e \\times e_{asic}}{\\frac{R}{N}}$$\n", | |
"\n", | |
"$$ e_{pow} = \\frac{\\frac{R}{N(1+i)(c_e\\times e_{asic}}(1.01\\times c_{asic} + c_e \\times e_{asic})}{\\frac{R}{N}}$$\n", | |
"\n", | |
"$$ e_{pow} = \\frac{1.01\\times c_{asic} + c_e \\times e_{asic}}{(1+i)(c_e\\times e_{asic}}$$\n", | |
"\n", | |
"$$ e_{pow} = \\frac{1}{1+i}(1+1.01\\frac{c_{asic}}{c_e\\times e_{asic}}$$" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": null, | |
"metadata": { | |
"collapsed": true | |
}, | |
"outputs": [], | |
"source": [] | |
} | |
], | |
"metadata": { | |
"kernelspec": { | |
"display_name": "Python 3", | |
"language": "python", | |
"name": "python3" | |
}, | |
"language_info": { | |
"codemirror_mode": { | |
"name": "ipython", | |
"version": 3 | |
}, | |
"file_extension": ".py", | |
"mimetype": "text/x-python", | |
"name": "python", | |
"nbconvert_exporter": "python", | |
"pygments_lexer": "ipython3", | |
"version": "3.5.2" | |
} | |
}, | |
"nbformat": 4, | |
"nbformat_minor": 1 | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment