Community Profile # Daniel Lee

Active since 2015

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UICBioE240 problem 1.3
Find the length of a vector. So if A = [1 1 1 1 1] Then B = 5

environ 6 ans ago

Problem

UICBioE240 2.10
Given a vector of numbers, give the difference between the maximum and minimum values.

environ 6 ans ago | 0 | 134 solvers

Problem

UICBioE240 2.8
Convert x number of hours into seconds.

environ 6 ans ago | 1 | 149 solvers

Problem

UICBioE240 2.7
Given x1 and x2, create a 3x3x3 matrix Y where (:,:,1) has all values of x1*x2, (:,:,2) has all values of x1-x2, and (:,:,3) has...

environ 6 ans ago | 0 | 31 solvers

Problem

UICBioE240 2.3
Make a 4D matrix of 4x4x3x4 containing all zeros.

environ 6 ans ago | 1 | 150 solvers

Problem

UICBioE240 2.2
Make a 3x4 matrix that contains all ones.

environ 6 ans ago | 0 | 136 solvers

Problem

UICBioE240 2.1
This will be useful later in the course, in conjunction to clc and clear all, what is the command to close all figure windows th...

environ 6 ans ago | 1 | 159 solvers

Solved

Say something funny
Say something funny, or not. Your solution will be (fully automatically and objectively) scored based on how clever or funny ...

environ 6 ans ago

Problem

UICBioE240 problem 1.18
exp(pi/5*i) and exp(pi/5i). Is there any difference in result? Write yes or no as a string.

environ 6 ans ago | 1 | 157 solvers

Problem

UICBioE240 problem 1.17
In the expression (2+5i), how does MATLAB read the expressions A = 2+5i B = 2+5*i C = both are okay Write capital letter a...

environ 6 ans ago | 1 | 132 solvers

Problem

UICBioE240 problem 1.16
sin^2(pi/6) + cos^2(pi/6)

environ 6 ans ago | 1 | 139 solvers

Problem

UICBioE240 problem 1.15
Calculate: sin(pi/6) cos (pi) tan(pi/2)

environ 6 ans ago | 0 | 123 solvers

Problem

UICBioE240 problem 1.14
Solve 3^x = 17

environ 6 ans ago | 1 | 126 solvers

Problem

UICBioE240 problem 1.12
The mathematical quantities e^x, ln x and log x are calculated using the expression exp(x), log(x) and log10(x) respectively. ...

environ 6 ans ago | 0 | 70 solvers

Problem

UICBioE240 problem 1.11
Store a series of numbers into a 4 by 4 matrix, starting with the first few positions going right and down, and leaving the rest...

environ 6 ans ago | 0 | 7 solvers

Problem

UICBioE240 problem 1.10
Find the number of cells in a bioreactor after a given time when doubling time is dd and initial number of cells is x. So if ...

environ 6 ans ago | 1 | 101 solvers

Problem

UICBioE240 problem 1.9
Swap the first and last columns of a matrix. So if A = [12 4 7; 5 1 4]; B = [7 4 12; 4 1 5]; ...

environ 6 ans ago | 0 | 99 solvers

Problem

UICBioE240 problem 1.8
Given a list of grades in a class, write a script that gives the 2nd highest grade in the class and the average for the class. ...

environ 6 ans ago | 1 | 104 solvers

Problem

UICBioE240 problem 1.7
Find the other two angles of a right triangle given the two of the sides. So if A = [1 1] B = [45 45]

environ 6 ans ago | 1 | 73 solvers

Problem

UICBioE240 problem 1.6
Find the tangent line of a right triangle given the two of the sides. So if A = [1 1] B = sqrt(2)

environ 6 ans ago | 0 | 145 solvers

Problem

UICBioE240 problem 1.5
Find the size of the matrix, then multiply both values by 10 and make it into a column vector. So if A = [ 1 2 3; ...

environ 6 ans ago | 0 | 130 solvers

Problem

UICBioE240 problem 1.4
So if A = [ 1 2 3; 4 5 6; 7 8 9] B = [ 3 3]

environ 6 ans ago | 1 | 143 solvers

Problem

UICBioE240 problem 1.3
Find the length of a vector. So if A = [1 1 1 1 1] Then B = 5

environ 6 ans ago | 1 | 167 solvers

Problem

UICBioE240 problem 1.2
Convert a column vector into a row vector. So if A = [1; 2; 3] Then B = [ 1 2 3]

environ 6 ans ago | 2 | 168 solvers

Problem

UICBioE240 problem 1.1
Remove the middle row from a matrix, assuming # of rows is odd. So if A = [ 1 2 3; 4 5 6; 7 8 9] the...

environ 6 ans ago | 1 | 115 solvers

Problem

UICBioE240 problem 1.13
Compute the following - y = x^5/(x^-1) and y = (1-(1/x^5))^-1. Have the final answer of y to equal a 1 by 2 vector.

environ 6 ans ago | 0 | 135 solvers

Solved

Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

environ 6 ans ago

Solved

Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

environ 6 ans ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

environ 6 ans ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

environ 6 ans ago