已解决

DC-DC boost converter
Find the output voltage of a DC-DC boost converter when its input voltage is 12V and the duty cycle ratio is 0.6.

8 years 前

已解决

Modulation index
The amplitude of the carrier signal is 2V and the amplitude of the modulating signal is 8V. Find its modulation index.

8 years 前

已解决

Solve equation numerically
y'=y In order to solve equation using computer, numerical analysis are needed. 1st order Euler's method is one of the metho...

8 years 前

已解决

Solve expression I
Solve expression (1+sin(x))/cos(x)+cos(x)/(1+sin(x)) for given vector x.

8 years 前

已解决

Count given word x in text.
Count how many times given word x repeats in text.

8 years 前

已解决

Make roundn function
Make roundn function. x=0.55555 y=function(x,1) y=1 y=function(x,2) y=0.6 y=function(x,3) y=0.56 ...

8 years 前

已解决

Sum positive elements of matrix.
Calculate sum of positive elements of the matrix.

8 years 前

已解决

Calculate triangle's hypotenuse
There are 634 eggs. A box can take 18 eggs. How many boxes are needed? Input is number of eggs and output is number of needed...

8 years 前

已解决

Calculate triangle's hypotenuse
There are 634 eggs. A box can take 18 eggs. How many boxes are needed? Input is number of eggs and output is number of needed...

8 years 前

已解决

Find my daddy short leg
Given the ratio of the two legs,and the hypotenuse, find the value of the shorter leg

8 years 前

已解决

How to calculate log?
There is a log that have base 5. How to calculate? log5(x)?

8 years 前

已解决

How to check matrix's size?
x=randi(100) y=randi(100) A=zeros(x,y) Can you measure size of matrix A?

8 years 前

已解决

Create given matrix
y = 0 0 1 1 0 0 0 0 1 1 0 0 1 1 1 1 1 1 ...

8 years 前

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Change matrix to vector
Vector is a matrix whose size is 1 x n or n x 1. Change matrix to vector. x = 4 3 5 1 ...

8 years 前

已解决

Change matrix to vector2
From x = 4 3 5 1 5 1 To y = 4 3 5 1 ...

8 years 前

已解决

Сoncatenate two strings into one
Concatenate two strings, become one strings Example: s1 = 'Hello' s2 = 'world' result = "Hello world "

8 years 前

已解决

Display positive elements of matrix.
Display positive elements of matrix.

8 years 前

已解决

Сoncatenate two strings.
Сoncatenate two strings. Example s1='Hello' s2='world' result='Hello world'

8 years 前

已解决

Compare two strings.
Compare two strings, whether they are equal or not.

8 years 前

已解决

Select primes from the matrix.
Select primes from the matrix.

8 years 前

已解决

x&u are two vectors then Y=x+u???
x&u are two vectors then Y=x+u???

8 years 前

已解决

Find peaks
x=0:0.1:10 y=exp(-0.7*(x-2).^2)+0.5*exp(-0.7*(x-7).^2) There are two peaks.(try plot(x,y)) Make code for finding peaks'...

8 years 前

已解决

Adding each element
Add the each element of the matrix.

8 years 前

已解决

Replace x value into y value in string text.
Replace x value into y value in string text. Example text='Hello World' x='World', y='Universe' result='Hello Universe'.

8 years 前

已解决

Weighted moving average
x1=[1 2 1]; y1=[1 2 2 4 5 6 6 8]; Make function for weighted moving average. z(i)=(x1(i)*y1(i)+x1(i+1)*y1(i+1)+x1(i+2)*y1...

8 years 前

已解决

check string
display any string

8 years 前

已解决

Calculate representive values (max. min. std)
A B C -------------------------- t=1 2.2 2.6 2.4 t=2 2.4 2.8 2.2 t=3 2.6 2.7 2....

8 years 前

已解决

N-plicate me
Modified version of duplicate and triplicate me. Repeat elements of input vector with given input n Ex: input = [1 2 3 4 5...

8 years 前

已解决

Duplicate me
Repeat elements of vector input twice Ex: input = [1 2 3] output = [1 1 2 2 3 3]

8 years 前

已解决

Calculate numerical integration.
x=0:0.01:1 y=x.^2 Calculate area from x=0 to x=1, and y=0 to y=x^2 using numerical integration. (hint: trapz)

8 years 前