acos

acos

Inverse cosine

Result = acos(expression)
expression

spatial, non spatial scalar

Result

dimension of expression direction

Options

affects Result only if expression is a number:

--degrees

direction is given in degrees (default)

--radians

direction is given in radians

Operation

This operator calculates for each cell the inverse cosine of the cell value on expression and assigns it to Result.

Notes

The values on expression must be equal to or between -1 and 1. Cells with a value outside this range will be assigned a missing value on Result. A cell with missing value on expression is assigned a missing value on Result.

Group

This operation belongs to the group of Arithmetic operators

Examples

  1. • pcrcalc
    #! –degrees
    binding
    Result = Result.map;
    Expr = Expr.map;
    initial
    report Result = acos(Expr);

    • python
    setglobaloption(“degrees”)
    Expr = readmap(“Expr.map”)
    Result = acos(Expr)

    Result.map

    Expr.map

    ../../_images/acos_Result.png ../../_images/acos_Expr.png