Fluent API Using PowerShell v5 Classes

GeometryNumber,.ps1

class GeometryNumber {
    [double]$Number

    GeometryNumber()               {}
    GeometryNumber($Number)        { $this.Number=$Number }
    
    [GeometryNumber] Sqrt()        { return [GeometryNumber]::new([Math]::Sqrt($this.Number)) }
    [GeometryNumber] Reciprocal()  { return [GeometryNumber]::new(1/$this.Number) }
    [GeometryNumber] TangetAngle() { return [GeometryNumber]::new([System.Math]::Atan($this.Number)) }
    [GeometryNumber] AsDegrees()   { return [GeometryNumber]::new($this.Number*180/[Math]::PI) }
}

[GeometryNumber]::new(3).Sqrt().Reciprocal().TangetAngle().AsDegrees() | Format-Table -Autosize