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# ILDEBERTO DE LOS SANTOS RUIZ

### Tecnológico Nacional de México

17 total contributions since 2019

Profesor en el TecNM, adscrito al Instituto Tecnológico de Tuxtla Gutiérrez.

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Submitted

Water Properties
Computes some physical properties of water dependent on temperature, from 1 to 99 celsius.

Submitted

Moody chart
Plots the Moody chart.

Submitted

Colebrook-White Equation
Computes the friction factor in pipes for given values of the Reynolds number (Re) and the relative roughness coefficient (epsil...

Submitted

figure2pdf
FIGURE2PDF exports the current MATLAB figure to a PDF file.

Submitted

getfigdata
GETFIGDATA extracts the xyz data from a FIG file.

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

12 months ago

how to write a user defined function that calculates the maximum or minimum of a quadratic equation of the form
Try this: --------------------- f = @(x) x^2-5*x+6; initial = 0; fminsearch(f,initial) --------------------- To find a max...

1 year ago | 0

Why power function give a complex number result?
The "problem" appears when you raise the base (-x / x50) to power n. In IEEE floating-point computations: a ^ n = exp(n * log(...

1 year ago | 0

Haw can I calculate the difference between two points in a plot?
Try this: --------------------------------------- plot(...) [x,y] = ginput(2); % clic on each point dx = diff(x) dy = diff(...

1 year ago | 0

| accepted

Adding semicolon and comma and saving it into .txt file
Try this low-level code: ----------------------------------------- x = randi(9,[1,2*6001]); % ACTUAL DATA fileID = fopen('da...

1 year ago | 0

| accepted

Submitted

epanet_map
Draws an EPANET network in a new MATLAB figure using geographic axes and satellite maps.

Submitted

Hurwitz Matrix
Computes the Hurwitz matrix for a given polynomial. The principal minors are also computed.

Submitted

Steady-state (final) response of linear dynamic systems under constant input.

Submitted

Trapezoidal
Simulation of linear dynamic systems using trapezoidal integration method with constant time step.

Submitted

Jacobians
Linear approximation matrices of a non-linear dynamic model.

Submitted

Equilibrium Point
Equilibrium point of a non-linear dynamic system.