Josh Kaplan josh-kaplan
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| #!/bin/bash | |
| # Aliases | |
| alias ls="ls -G" | |
| alias l="ls $*" | |
| alias ll="ls -l" | |
| alias lls="ls -l $*" | |
| alias .="cd ~/Dev" | |
| alias ..="cd .." | |
| alias ...="cd ../../" |
josh-kaplan
/ jdk.zsh-theme
Last active
August 29, 2015 14:25
A modification to the robbyrussell theme
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| local ret_status="%(?:%{$fg_bold[green]%}∴ :%{$fg_bold[red]%}∴ %s)" | |
| PROMPT='${ret_status}%{$fg_bold[green]%}%p%{$fg_bold[grey]%}%n%{$fg_bold[white]%}@%{$fg_bold[grey]%}%m%{$fg_bold[green]%}%u %{$fg[cyan]%}%c %{$fg_bold[blue]%}$(git_prompt_info)%{$fg_bold[blue]%}%{$reset_color%}' | |
| ZSH_THEME_GIT_PROMPT_PREFIX="git: (%{$fg[red]%}" | |
| ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%} " | |
| ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[blue]%})%{$fg[yellow]%}✗%{$reset_color%}" | |
| ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[blue]%})" |
josh-kaplan
/ spacex_its_volume.m
Last active
October 2, 2016 22:45
A script to calculate human-usable living space of SpaceX's ITS ship. After watching some of Elon Musk's presentation, I could quite wrap my head around 100 people on that ship. So here's the math and some perspective. Turns out 100 people may not be unreasonable.
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| % SpaceX ITS Volumetric Capacity | |
| % spacex_its_volume.m | |
| % | |
| % Josh Kaplan | |
| % contact@joshkaplan.org | |
| % | |
| % SpaceX claims that the spaceship that sits atop ITS can carry 100+ people | |
| % per ship. | |
| % | |
| % The ship is slightly larger than the Saturn V, which carried 3 people. |
josh-kaplan
/ jdk.zsh-theme
Created
March 22, 2017 18:07
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| local ret_status="%(?:%{$fg_bold[green]%}∴ :%{$fg_bold[red]%}∴ %s)" | |
| PROMPT='${ret_status}%{$fg_bold[green]%}%p%{$fg_bold[grey]%}%n%{$fg_bold[white]%}@%{$fg_bold[grey]%}%m%{$fg_bold[green]%}%u %{$fg[cyan]%}%c %{$fg_bold[blue]%}$(git_prompt_info)%{$fg_bold[blue]%}%{$reset_color%}' | |
| ZSH_THEME_GIT_PROMPT_PREFIX="git: (%{$fg[red]%}" | |
| ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%} " | |
| ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[blue]%})%{$fg[yellow]%}✗%{$reset_color%}" | |
| ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[blue]%})" |
josh-kaplan
/ sight_reduction.py
Created
April 16, 2017 18:40
A script used to solve sight reduction homework problems for navigation class.
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| """ | |
| Sight Reduction | |
| Calculate position on 2000 June 21 2100 UTC | |
| Star Observed Altitude | |
| ------- ----------- -------- | |
| Regulus 20h 39m 23s 37.4204 | |
| Antares 20h 45m 47s 20.3226 | |
| Kochab 21h 10m 34s 47.2050 |
josh-kaplan
/ sight-reduction-geosat.py
Created
April 29, 2017 21:53
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| """ | |
| Sight Reduction | |
| Similar to the last sight reduction one, but modified to use geostationary satellites. | |
| """ | |
| from __future__ import division | |
| import math | |
| from math import sin, cos, tan, asin, acos, atan |
josh-kaplan
/ M03_Kinetic_Energy_v2.m
Created
June 11, 2017 23:48
Newton's Method. This will work with either MATLAB or Octave. Used to determine the maximum speed at which kinetic energy can be described by the Newtonian equation with an error with a specified tolerance of relativistic energy.
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| %% Newtonian vs. Relativistic Energy Accuracy - Using Newton's Method | |
| % Determines the maximum speed a particle can have such that its | |
| % kinetic energy described as 0.5*m*v^2 with an error of no greater | |
| % than <tolerance>. | |
| close all; clear all; clc; | |
| % Input - The tolerance of the accuracy of the Newtonian kinetic energy | |
| % compared to the relativistic energy. | |
| tolerance = .005; |
josh-kaplan
/ M03_Kinetic_Energy.m
Last active
June 11, 2017 23:49
Bisection Method. This will work with either MATLAB or Octave. Used to determine the maximum speed at which kinetic energy can be described by the Newtonian equation with an error with a specified tolerance of relativistic energy.
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| %% Newtonian vs. Relativistic Energy Accuracy | |
| % Determines the maximum speed a particle can have such that its | |
| % kinetic energy described as 0.5*m*v^2 with an error of no greater | |
| % than <tolerance>. | |
| close all; clear all; clc; | |
| % Input - The tolerance of the accuracy of the Newtonian kinetic energy | |
| % compared to the relativistic energy. | |
| tolerance = .005; |
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| %% Newtonian vs. Relativistic Energy Accuracy | |
| % Determines the maximum speed a particle can have such that its | |
| % kinetic energy described as 0.5*m*v^2 with an error of no greater | |
| % than <tolerance>. | |
| close all; clear all; clc; | |
| % Input - The tolerance of the accuracy of the Newtonian kinetic energy | |
| % compared to the relativistic energy. | |
| tolerance = .005; |
josh-kaplan
/ pset2-1.jl
Last active
February 14, 2018 03:19
Calculations for FESS 1 Problem Set #2, Problem #1
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| #!/usr/bin/env julia | |
| ################################################################################ | |
| # pset2-1.jl | |
| # | |
| # Josh Kaplan | |
| # _jk@jhu.edu | |
| # | |
| # Computations for Problem Set #2, Problem #1. | |
| ################################################################################ |
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