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Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

bijna 7 jaar ago

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Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

bijna 7 jaar ago

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Find out sum of all elements of given Matrix
Find out sum of all elements of given Matrix A=[1 2 3;4 5 6 ;7 8 9]; Answer must be: 45 *If you like this problem, pl...

bijna 7 jaar ago

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Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...

bijna 7 jaar ago

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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

bijna 7 jaar ago

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merge two matrices together in one matrix
a= [1 2 3 4]; b=[5 6 7 8]; take the first column from matrix (a)and (b)then insert them in matrix (c) respectively, and so on;...

meer dan 7 jaar ago

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Sudoku square
We have a small Sudoku square, but one number is missing. x = [ 1 5 4 8 6 3 0 9 7 ] Make a function, wher...

meer dan 7 jaar ago

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Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

meer dan 7 jaar ago

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Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

meer dan 7 jaar ago

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Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...

meer dan 7 jaar ago

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Words Count: A String Array Approach
Given an input character vector consisting of words, punctuation marks, white spaces, and possibly newline characters (\n), arra...

meer dan 7 jaar ago

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How to use intervals within fplot?
In R2016a and beyond, you could use this: fplot(@f,[10,20],'MeshDensity',100) It's worth noting that |fplot| in these re...

meer dan 7 jaar ago | 1

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Project Euler: Problem 10, Sum of Primes
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below the input, N. Thank you <http:/...

meer dan 9 jaar ago

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Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

meer dan 9 jaar ago

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Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

meer dan 9 jaar ago

Answered
Reducing or simplifying the **symbolic** product of two integrals
What |simplify| currently cannot do is to rename your bound variable |eta| to |xi| at the right time. You may need to explicitly...

bijna 10 jaar ago | 0

Answered
Symbolic Output Display Problem
If I understand your problem correctly, you don't want approximations as given by |vpa|. In that case, here's the best advice I ...

bijna 10 jaar ago | 0

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MUPAD plot multiple points
If you already have multiple points (not just the vector |r|), you can get a line through them this way: plot([[1,2],[3,10]...

bijna 10 jaar ago | 2

| accepted

Answered
Creating new symbolic identities
Works for me: >> syms x y z >> S = x^2+y^2+z^2+x+y+z+1 S = x^2 + x + y^2 + y + z^2 + z + 1 >> su...

bijna 10 jaar ago | 0

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Big integer and Precision
You can compute with exact integers and rationals using the symbolic toolbox, just make sure they are not cut off by computing i...

bijna 10 jaar ago | 0

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Error, (in expand/bigprod) integer too large in context ?
This error means the computation is trying to compute something like integer^integer with an exponent larger than 2^32. The resu...

bijna 10 jaar ago | 0

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Solve symbolic system of equations when specifying solutions
>> A = sym('a',[3 3]); >> b = sym('b',[3 1]); >> x = A\b x = (a1_2*a2_3*b3 - a1_3*a2_2*b3 - a1_2*a3_3*...

bijna 10 jaar ago | 0

| accepted

Answered
Find degree of non-polynomial expression in Matlab
That depends on what exactly you are looking for in the general case. Here's something that works in this particular one: >...

bijna 10 jaar ago | 0

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Comparing accuracy of symbolic computation with matlabFunction
Small correction to Christopher Berry's answer: |double(subs(s))| does not compute to 32 digits (unless the values substituted a...

bijna 10 jaar ago | 1

Answered
simplifying symbolic expressions using assumptions
This approximation can be viewed as a special kind of truncated series: >> syms X Y >> A = X/(X*Y + 1); >> taylor(A, ...

bijna 10 jaar ago | 0

Answered
Using subs for multiple substitution when the symbolic expression is a matrix
If you want to substitute values for all variables, want to get a double, and plan to do that more often, I definitely recommend...

bijna 10 jaar ago | 0

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Remove NaN ?
input -> matrix (n*m) with at least one element equal to NaN; output -> matrix(p*m), the same matrix where we deleted the enti...

bijna 10 jaar ago

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All your base are belong to us
Find the base _b_ logarithm of the input decimal number _x_. Express the output as a decimal number. The first argument is the n...

bijna 10 jaar ago

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Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

bijna 10 jaar ago

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Scrabble Scores
Given a word, determine its score in <http://en.wikipedia.org/wiki/Scrabble Scrabble>. The input string will always be provide...

bijna 10 jaar ago