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how many of the entries are positive?
Given x= sin(linspace(0,10*pi,100)), how many of the entries are positive?

4 years ago

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count upper and lower case characters
In a given input string, count and return the number of upper and lower case characters as u and l respectively. For example:...

4 years ago

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Basic matrix operations using standard MATLAB commands
Create the matrix: 1.0e+15 * 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000...

4 years ago

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Sum sum!!!
Sum the numbers from 1 to n

4 years ago

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Molecule Atomic Wt (CHONS) Molecules
Given a molecular equation string determine its atomic weight. Limited atoms of C H O N and S where wts are rounded to [12 1 ...

4 years ago

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Convert Angstrom to Meters
Write a code that converts the angstrom unit to meters.(A is angstrom and m is meters.)

4 years ago

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Add 3 (x<=100) Or Subtract 100 and add 3(100<x)
Add 3 to every element. However, if the value is greater than 100, subtract 100 and add 3. eg. input x = [45 106; 67 1...

4 years ago

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volume of torus
Find volume of torus with a as major radius and b as minor

4 years ago

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Sum two real numbers
It seems easy, but... You cannot use +, -, plus, diff, cumsum, *, prod, times, etc.

4 years ago

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ranch area?
Your friend has a ranch with four distinct boundary lines. Three boundary lines are ideal straight roads: (1) North Club Road, (...

4 years ago

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Row sum

4 years ago

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NaN

5 years ago

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The average of the second largest values
Given a matrix, find the average of the second largest values in each row. The same value does not exist on a row. Example: ...

5 years ago

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Chào các bạn.
Cho 3 số. Tính tổng của chúng

5 years ago

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replace empty matrices with '[]'
for example a=1;a(:,1)=[]; returns a = Empty matrix: 1-by-0 use this as the input,and the output should be '[]...

5 years ago

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Calculate feeling temperature before climbing a mountain
I sometimes climb a mountain. As is well known, when the altitude becomes 100 (m) higher, the temperature lowers by 0.6 degrees...

5 years ago

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i forgot to use capital I
When referring to yourself you should write "I" (capital) and not "i". So correct the input string x, but be aware that other u...

5 years ago

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design a magic matrix without using the command magic.
Like magic(4) = 16 3 2 13;5 10 11 8;9 6 7 12;4 15 14 1

5 years ago

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Raise Matrix to Power
For a given square matrix x and scalar a, find x^a without using '^' or 'mpower'.

5 years ago

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Dancing with wolves?
let wolf() make one or two steps to get a feel of the beat, it is waltz, do not let wolf() make the third step, return safely ju...

5 years ago

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provide the numerical answer to these number questions...
return a row matrix containing the sorted numbers which answer the following questions: a) what is the first Knuth number to...

5 years ago

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give-nth-decimal-place-of-pi up to 100 digits
max 100th place after the decimal point this is upgrade problem of 142

5 years ago

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Split a given string from the first instance of a given character
A simple operation to split a given string into two substrings at the point where the desired character is first found. e.g. ...

5 years ago

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Given A4 sizes find A3's long side
I think you know the relation between A3 and A4 paper so givens are sides of A4 x1=long side of A4 y1=short side of A4 y2 is ...

5 years ago

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Flow rate in a pipe

5 years ago

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apply zero padding to a matrix

5 years ago

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How many days does the cat take to climb out of the hole?
A cat accidentally falls down a hole with sloping but rough sides. It can climb out of the hole of height h metres, but for ever...

5 years ago

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Sum of unique multiples of 3 and 5
If we list all the natural numbers up to 15 that are multiples of 3 or 5, we get 3, 5, 6, 9, 10, 12 and 15. The sum of these mul...

5 years ago

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Dice roll - lateral faces
For this problem, you will be provided with the values of a dice roll (regular six-sided dice). The number of dice will be at le...

5 years ago

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Dice roll - opposite faces
For this problem, you will be provided with the values of a dice roll (regular six-sided dice). The number of dice will be at le...

5 years ago