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Nicholas Drexler's Projects

4-character-password-cracker icon 4-character-password-cracker

This is a very simple password cracker that can take case sensitive letters, numbers or symbols as inputs. It will run through nested iterations using Brute Force. The longest this program should run is roughly 20 seconds.

nyc-covid-data icon nyc-covid-data

This is an academic project, using python to visualize Covid-19 cases, hospitalizations and deaths. We use a non-linear regression with options for Quadratic or Cubic Polynomial modeling. This is a limited version which can later be altered into subplots to best visualize all information at once. This is preferred since obvious connections can be drawn by simple visual comparison.

oscilating-spring-mass-system-with-various-dampings icon oscilating-spring-mass-system-with-various-dampings

For the non-physicist / non-engineers: We consider the sum of forces acting on a spring-mass system in the direction of the bob's axial motion. These are the friction force, spring force and newtons second law. The sum of these forces can be written: b * (velocty) - K * (position) = (mass)*(acceleration) We can then express this as a Linear 2nd Order Differential Equation, where acceleration is the 2nd derivative of position and velocity is the 1st derivative of position. The system is thus directly affect by b, which is the coeffient of friction (damping coefficient) for the spring, K which is the spring constant which is how stiff the spring is, and the mass of the bob. All differential equations require initial conditions for the position and for the velocity. The amount dt, is an iterator that refines detail. INSTRUCTIONS Only adjust the quantities in the SETTINGS section of the code. Depending on those settings, the code will abutomatically determine if the system is underdamped, overdamped, critically damped, or undamped, and produce the proper graph with dampening type in the title and the differential equation in the label.

python-candlestick-chart-from-scratch- icon python-candlestick-chart-from-scratch-

This project uses only 'matplotlib', 'numpy' and 'pandas' to make candle stick chart from scratch. There are many packages one could use to make a Candlestick Chart very quickly, however, the fun was in the challenge of making it for myself just using. Features a link to a yahoo finance csv file, ability to chose how many days prior to the most recent day to view. This is a similar capability found in popular trading platforms like TD's "Think or Swim". From humble beginnings, we can build more sophisticated functionality.

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