If we need to run the same algorithms or formula for computations again and again, then instead of writing the same stuffs in our script file many times, we can simply write a function. This makes our script look simpler and faster to run.

Writing a function in MATLAB

**Examples:**

Calculating mean and standard deviation

Calculating distance from origin

Calculates distance (in km) between two coordinate points on the Earth’s surface

—Utpal Kumar (IES, Academia Sinica)

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This might be very basic. But following the function logic I wrote this:

phi = 0:1:90

sin_phi= sind (phi);

K = (sin_phi/(1-sin_phi))

Results show only one K. I want all of the K’s for all of the Phi’s.

May I ask a hint where to go then?

Thanks!!!

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@Rocio: Here, your variable sin_phi is an array. In MATLAB, for division with an array, the operator “./” is used instead of “/”. Here, you need to change K = (sin_phi./(1-sin_phi)) to get an array output.

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Thanks codethedata!

I’ll will move forward with my exercise then. I skipped continuing with the problem, now I’ll go back to it.

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