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# Daniel Lee

35 total contributions 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

mer än 5 år ago

Problem

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

mer än 5 år ago | 0 | 130 solvers

Problem

UICBioE240 2.8
Convert x number of hours into seconds.

mer än 5 år ago | 1 | 146 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...

mer än 5 år ago | 0 | 34 solvers

Problem

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

mer än 5 år ago | 1 | 147 solvers

Problem

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

mer än 5 år ago | 0 | 134 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...

mer än 5 år ago | 1 | 157 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 ...

mer än 5 år 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.

nästan 6 år ago | 1 | 154 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...

nästan 6 år ago | 1 | 132 solvers

Problem

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

nästan 6 år ago | 1 | 137 solvers

Problem

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

nästan 6 år ago | 0 | 120 solvers

Problem

UICBioE240 problem 1.14
Solve 3^x = 17

nästan 6 år ago | 1 | 123 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. ...

nästan 6 år ago | 0 | 67 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...

nästan 6 år ago | 0 | 10 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 ...

nästan 6 år ago | 1 | 98 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]; ...

nästan 6 år ago | 0 | 96 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. ...

nästan 6 år ago | 1 | 102 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]

nästan 6 år ago | 1 | 71 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)

nästan 6 år ago | 0 | 141 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; ...

nästan 6 år ago | 0 | 127 solvers

Problem

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

nästan 6 år ago | 1 | 131 solvers

Problem

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

nästan 6 år ago | 1 | 152 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]

nästan 6 år ago | 2 | 159 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...

nästan 6 år ago | 1 | 108 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.

nästan 6 år ago | 0 | 131 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...

nästan 6 år 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...

nästan 6 år 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 ...

nästan 6 år 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 ...

nästan 6 år ago