# Salvatore Mazzarino

### Università degli Studi di Catania

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Solved

Pizza!

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

10 years ago

Solved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

10 years ago

Question

Simulink communication to Raspberry USB port

I would know if it exits a way to let communicate Simulink to a device connected to the USB port of Raspberry Pi?

10 years ago | 2 answers | 0

### 2

answersQuestion

Designing digital filters by using boards

I would like to design digital filters such as FIR filters in Matlab. I know pretty well how to do that. Additionally I have the...

10 years ago | 1 answer | 0

### 1

answerQuestion

Find out the real part of symbolic expression by using MuPad

Hello. I'm trying to find out the real part of the following symbolic expression: y0*(y2+jy0)/(y0+jy2) by using MuPad I...

10 years ago | 2 answers | 0

### 2

answersQuestion

Which could be the smartest way to do what this function does

I should have to graph step discret signal. This is the function. function y = step(a,b,n0,flag) n = a:b; ...

10 years ago | 1 answer | 0

### 1

answerQuestion

improve performance of this code

suppose to have a matrix called A 3 0 3 3 0 0 4 0 and have this function while(1) if all(A(:,i) == 0) ...

11 years ago | 3 answers | 0

### 3

answersQuestion

corresponding index of an element

I have two vectors g_counter = [2 0] and list = [3 0] I would get the indices of all the elements belong to g_...

11 years ago | 2 answers | 0

### 2

answersQuestion

getting index of elements

I have two vectors g_vector = [2 0] list = [3 0] I would get the index of elements of g_vector that have their i...

11 years ago | 2 answers | 0

### 2

answersQuestion

get a matrix of only zero

How can I get a mattrix made of only zeros? For example I have this matrix [2 4 0 5 6 0] I would get a matrix made of...

11 years ago | 4 answers | 0

### 4

answersQuestion

way to use returned valued of a if clause

I have an if clause if expression do-something end I would use the value return by expression into the...

11 years ago | 1 answer | 0

### 1

answerQuestion

append elements to a vector

At the beginning of my simulation I create an empty vector vector = [] During the simulation I insert some elements into...

11 years ago | 1 answer | 1

### 1

answerQuestion

getting elements of a vector

I have this vector g_counter = [5 6 9 0 0]; list = [1 2 3]; If I do g_counter(list) I get 5 6 9 instead I wo...

11 years ago | 1 answer | 0

### 1

answerQuestion

plot bar graph in the same graph

I have a bar graph. I would plot in the same bar graph another bar graph with excatly the same values without overriding the exi...

11 years ago | 1 answer | 0

### 1

answerQuestion

creating a simple simulation

I'm trying to create a simple simulation using simscape elements of this circuit <http://imageshack.us/photo/my-images/195/im...

11 years ago | 1 answer | 0

### 1

answerQuestion

connect simscape item to ps-simulink converter

I would connect a simscape element directly to ps-simulink converter block but I don't know how to do. Some idea?

11 years ago | 0 answers | 0

### 0

answersQuestion

connect resistor element to signal generator

I'm trying to create my first simulation with simulink but I have some problems. I would connect Signal generator block to a res...

11 years ago | 1 answer | 0

### 1

answerQuestion

initialize a MxN matrix with the same number

I would initialize a M x N matrix with the same number. Which could be the best way in terms of speed? Es. [2 2; 2 ...

11 years ago | 10 answers | 0

### 10

answersQuestion

setting the step of x and y axes

I'm looking for the way to set the step of x and y axes. does it exist a way?

11 years ago | 1 answer | 0

### 1

answerQuestion

ismember function too slow

I have to improve the speed of my simulation. Well my code is quite simple. I have a vector A=[1 2 3 4 5 6 7 8 9 10] and anothe...

11 years ago | 5 answers | 0

### 5

answersQuestion

comment lines at the beginning of code execution

I'm finding a way to comment every line where fprintf function appears if the value of DEBUG variable is setted to 0. for exampl...

11 years ago | 1 answer | 0

### 1

answerQuestion

better way to improve performance of my code

I'm doing a simulation using for cycle. In this simulation I have a series of fprintf that print out information. To improve th...

11 years ago | 2 answers | 0

### 2

answersQuestion

improve this function in terms of speed

In my simulation this function is called many time and I would improve in terms of speed this function so I can earn in executio...

11 years ago | 2 answers | 0

### 2

answersQuestion

putting return to a function

I have created a function "my_function" and into it I call another function called "another_function". function my_function() ...

11 years ago | 2 answers | 0

### 2

answersQuestion

how to read or write a file according to its absolute path

I read a txt file using importdata. I pass the name of txt file to that function. Instead to pass only the name I would pass the...

11 years ago | 2 answers | 0

### 2

answersQuestion

check if a file exists

I'm using the "importdata" function to import data from a text file. I would like to have a way to check if the text file exists...

11 years ago | 7 answers | 5

### 7

answersQuestion

best way in terms of performance to read a text file

I have to read values from text file that have this body: 1 2 3 4 5 6 7 8 9 10 after having read every of those value I ...

11 years ago | 2 answers | 0

### 2

answersQuestion

connect these points as a curve

I have a vector made of 10 values 1 2 3 4 5 6 7 8 9 10 and another row vector made of: 1.2012e-03 2.3046e-03 2....

11 years ago | 1 answer | 0

### 1

answerQuestion

looking for an efficient way to activate all fprintf in the function

I have a function and into it there are a lot of fprintf that print out some informations.I would create a way to show or not sh...

11 years ago | 2 answers | 1