C# Programming > Math

# C# Calculate Slope of Line

## Slope of Line

Using C#, you can write a function to calculate **slope of line **defined by two points. The slope of line is basically how steep a line is...

Calculating the slope is helpful for a number of C# algorithms, including image processing.

## Calculating

To calculate the slope of a line, you use the following formula:

difference in Y values / difference in X values.

You may hear it referred to as delta Y over delta X. Fittingly, a line with 0 for delta Y (meaning a horizontal line) will have a slope of 0 since it is flat.

On the other hand, a line that is perfectly vertical (meaning a delta X of 0) will have an infinite slope since it is as steep as it can get.

Due to the simplificy of the formula, the C# code will not be complicated at all. In fact, it will strongly resemble the C# distance formula function.

## C# Slope Function

The full C# **slope function** is in the source code that you can download at the end of the page. For the sake of accuracy, the function uses double and PointF types to calculate slope of line...

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