Mathematical expressions can be written on any position on the work sheet.

Any number of expressions can be written to the worksheet.

A calculation starts on the top of the worksheets without predetermined order. RedCrab calculate first the expressions whose results will be used in other expressions.

This logical order allows you to use variables at the top of the Worksheet which are defined or calculated below.

A result is displayed only for expressions that are completed with an equal sign.

Frames

If you write a expression, RedCrab draws a frame fit to the formula size.

Each expression gets its own frame.

Input hints

The expression frame can be moved with the mouse.

Shift + Insert inserts a new row. This moves all frames below the cursor position down one row.

Shift + Delete deletes a row. To do this, all of the following frames are shifted up one row.

Press Home to move the cursor to the first column of the frame or to the first column of the worksheet.

Press End key to move the cursor to the last column of the frame or to the next frame of the row.

Press Shift + Enter to move the cursor to the first column below the frame.