Calculator Expressions

Two similar calculators use expressions, summary curve calculator and grid cell calculator. These two variants share the text parsing for calculator expressions.

Grid Property Calculator

Summary Curve Calculator

ResInsight supports a subset of the features supported in the exprtk parsing library. Scripting features like for/while loops are not supported. The full documentation for the expression parser is available at C++ Mathematical Expression Toolkit Library

Operators and Functions

Possible operations and functions are found by right-clicking in the expression window.

Comment lines

Create a comment line by prefixing with // or ##

// Valid comment line 2
## Valid comment line 1

Assignment Operators

## Example
MY_VARIABLE := b + c

Basic Operators

## Example
a := (b * c) + d / 10.5

Conditionals

if-then-else statements can be used to assign values based on the individual values in a vector. The following case will assign 0.01 if the TRANX is below 0.01, else copy the original TRANX value.

## Example
NEW_TRANX := if((TRANX < 0.01), 0.01, TRANX)

Scalar Functions

## Example: Use the accumulated sum for all PORV values to compute the normalized PORV
NORMALIZED_PORV := x/sum(PORV)

Trigonometry Functions

Vector Functions