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calculate Simple Interest
SI=(principal*time*rate)/100

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Calculate SImple Interest
SI=P*T*R

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Append two vectors
MATLAB allows you to append vectors together to create new vectors.

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Was ist denn los?
Nur für deutschsprechende Leute! Wie geht's? ...also gut, bis bald!

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Normalize by maximum
Subtract the maximum value in a column from the corresponding columns of a matrix.

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. ...

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Conversion from hours to mili sec
Convert given input in hours to mili seconds

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how do I calculate t-value when I only know the mean of 10 and 95% confidence interval. I do not know sample size.
There are some subtleties depending on how your 95% confidence interval was computed, but typically: CI = tinv(.975,N-1)*s...

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Reducing dimensionality of features with PCA
If you use: [coeff,score] = pca(M); Comp_PCA1 = score(:,1); where M is a (300 by n) matrix of voxel timeseries, and you...

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Shortest Path in a 3D Matrix
If you do not really care too much about the 'uniqueness' issue brought up in the comments, and just want to consider a single "...

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Current figure handle ignoring my open figure
most likely reason is that your figure has its _HandleVisibility_ property set to 'off' or 'callback' (so its handle is partiall...

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how to achieve a smooth transition of a straight line trajectory into a semi circle trjaectory
Your problem definition is unclear, but I would probably try setting this as an optimization problem where you try to optimize s...

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(Linear) Recurrence Equations - Generalised Fibonacci-like sequences
This problem is inspired by problems <http://uk.mathworks.com/matlabcentral/cody/problems/2187-generalized-fibonacci 2187>, <htt...

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Mirror, mirror on the wall, who is fairest of them all?
The Elo rating system was featured in the movie *The Social Network* during the <https://www.youtube.com/watch?v=BzZRr4KV59I/ al...

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Chess performance
After Problems <http://www.mathworks.com/matlabcentral/cody/problems/3054-chess-elo-rating-system/ 3054> and <http://www.mathwor...

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Chess probability
The difference in the ratings between two players serves as a predictor of the outcome of a match (the <http://en.wikipedia.org/...

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Chess ELO rating system
The Elo rating system is a method for calculating the relative chess skill levels of players in competitor-versus-competitor gam...

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BLOCK x3 (Version 4)
Always in this series ( <http://www.mathworks.com/matlabcentral/cody/problems/2451-block-x3-version-1/ 2451>, <http://www.mathwo...

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Gold Standard
Gold has long been used as currency and a standard for currency, due to its inherent value and rarity. Historical data for gold ...

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Fibonacci Decomposition
Every positive integer has a unique decomposition into nonconsecutive Fibonacci numbers f1+f2+ ... Given a positive integer n, r...

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~(*|/)
Return three quarters of n without using addition, subtraction, multiplication or division.

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Stress-Strain Properties - 8
Up to this point, you've calculated some material properties based on tensile stress-strain data. For this problem, you are task...

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Stress-Strain Properties - 7
The toughness of a material is technically defined as the plastic strain energy absorbed by the material (the olive region in th...

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Stress-Strain Properties - 6
The total energy absorbed by a material up to failure in a tensile test is termed the absorbed strain energy. With respect to th...

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Stress-Strain Properties - 5
Similar to the previous problem, materials may be characterized by their stiffness-to-weight ratio, which is the elastic modulus...

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Stress-Strain Properties - 4
A common measure of the ability of a material to carry load per unit mass is termed strength-to-weight ratio and is calculated b...

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Stress-Strain Properties - 3
A brittle material will not exhibit a yield point. In other words, the yield point and failure point coincide. In such cases, th...

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Stress-Strain Properties - 2
The resilience of a material is its ability to resist permanent (or plastic) deformation. The resilience coincides with the elas...

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Can any one suggest me how to make a large matrics positive definate.
the matrix B defined as: B = (A+A')/2 + lambda*speye(size(A,1)); will have eigenvalues eig(B) equal to real(eig(A))+lambd...

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Min by mean
Substitute the minimum value in each row of a matrix A by the mean of that row (it should also work if the input is a vector)

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