atan

atan

Inverse tangent

Result = atan(expression)

expression

spatial, non spatial scalar

Result

dimension of expression directional

Options

if expression is a number: --degrees or --radians

--degrees

direction is given in degrees (default)

--radians

direction is given in radians

Operation

For each cell, calculates the inverse tangent of the cell value on expression and assigns it to Result.

Notes

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

   binding

   Result = Result.map;

   Expr = Expr.map;

   initial

   report Result = atan(Expr);

   
   

   • python

   Expr = readmap(“Expr.map”)

   Result = atan(Expr)

   Result.map	Expr.map