use of [math]:: calculation

[] to evaluate (PI + 2)

PS R:\> invoke-expression ([math]::PI + 2)

5.14159265358979

[] to evaluate Sine 90 degree to nearest whole number

PS R:\> $d1 = [math]::Sin(90)
PS R:\> [math]::Round($d1)

1

[] to evaluate 2^32 and 2^64

PS R:\> [math]::Pow(2,32)

4294967296

PS R:\> [math]::Pow(2,64)

1.84467440737096E+19

Pow(2,49) is the maximum power to show a non expontient

[] to get the value in terms of TeraByte of 2^49

PS R:\> [math]::Pow(2,49)

562949953421312

PS R:\> [math]::Pow(2,49) /1TB

512