Sum of series VI
What is the sum of the following sequence:
Σk⋅k! for k=1...n
for different n?
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string comparision
compare two strings if both are same return 1 else return 0
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Average valid values of arrays
Given a 1D array (column or row vector), compute the average of valid values. Valid values are defined via two thresholds: minVa...
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Matrix Indexing
Given a matrix A and scalars r,c,i, find the product of two elements, with the first element located at row r and column c (doub...
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Convert Fahrenheit to Celsius
Calculate the Celsius temperature C given the Fahrenheit temperature F.
Examples:
Input F = 90
Output C is 32.22
I...
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Kelvin to Celsius
Degrees Celsius = degrees Kelvin - 273.15.
Given a temperature in Kelvin, return the equivalent temperature in Celsius.
Replace all odd numbers with NaN
Replace all odd numbers in the vector or matrix with NaN. For example, if
x = [1 3 4 5 8 11];
then return
y = [NaN Na...
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Create a "+" flag
Given two odd numbers, [m, n], return a matrix of size m x n which has all elements of the centre column and centre row set as 1...
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odd number odd sum
How many three digit numbers are there whose sum of the digits is odd?
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String Delimination and Outputting
In this problem, take an incoming string and deliminate the string based on spaces. Output the first string in between the space...
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SAY 'OHYEAH'
Regardless of input, output the string 'OHYEAH'.
Find all prime factors of the input
Given an input x, find its all prime factors. Return the vector with all factors in ascending order.
Efficiency is the key here...
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Sum of digits of powers of 2
Given n, first, calculate the number 2^n. Then, sum the digits that comprise that number. For example:
Input: n = 7
2^n = ...
All odd - all even
All odd numbers in x are added, while all even numers are subtracted from this.
example:
x = [1 2 3 4 5];
y = +(1+3+5)-...
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More Simple String Concatenation
Take the first string input, reverse the order of the string from the end to beginning (i.e. apple becomes elppa), add a space a...
Simple String Concatenation
This is a simple problem involving taking two incoming strings, and outputting the concatenated string with a space separating t...
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Add the positive numbers
Add only the positive numbers of x
example:
x = [-2 -1 0 1 2 3]
the positive numbers are: 1 2 3, so their sum is 6
Increment up an input vector
Increment up an input vector by adding the indices to the vector values. For example, if an input vector is [3, 2, 6, 1, 6], the...
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Automatic String Editing
In this function, you will take an incoming string, and output the same string with each character one letter later in the alpha...