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# dpressure

Compute dynamic pressure using velocity and density

## Syntax

``dynamic_pressure = dpressure(velocity,rho)``

## Description

example

````dynamic_pressure = dpressure(velocity,rho)` computes dynamic pressure, `dynamic_pressure`, from an m-by-3 array of Cartesian velocity vectors, `velocity`, and a 1-D array of densities, `rho`. `velocity` and `rho` must have the same length units.```

## Examples

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Determine dynamic pressure for velocity in feet per second and density in slugs per feet cubed:

`q = dpressure([84.3905 33.7562 10.1269], 0.0024)`
```q = 10.0365```

Determine dynamic pressure for velocity in meters per second and density in kilograms per meters cubed:

`q = dpressure([25.7222 10.2889 3.0867], [1.225 0.3639])`
```q = 475.9252 141.3789```

Determine dynamic pressure for velocity in meters per second and density in kilograms per meters cubed:

`q = dpressure([50 20 6; 5 0.5 2], [1.225 0.3639])`
```q = 1.0e+03 * 1.7983 0.0053```

## Input Arguments

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Cartesian velocity vectors, specified as an m-by-3 array. `velocity` and `rho` must have the same length.

Data Types: `double`

Density, specified as an array of m densities. `velocity` and `rho` must have the same number of rows.

Data Types: `double`

## Output Arguments

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Dynamic pressure, returned as a scalar or array of m pressures.

## See Also

Introduced in R2006b

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