
It is an analog of a standard calculator, with the ability to retrieve data from a drawing, adding a result to a drawing, and the ability to manually write a formula for calculating
About files with the extension .mpif
The file with the .mpif extension is a special installation file of the ModPlus (ModPlus Install File).
These files allow you to install and update all ModPlus components using the autoupdate module in case you do not have access to the internet or modplus.org
CALL OPTIONS
 ModPlus menu
 ModPlus palette
 AutoCAD ribbon
 Command line: _mpCalc
ICON
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USING
In the upper left part of the window there is a button that opens the menu for selecting the work option  Calculator; Interpolation; Degree, slope:
Use transparaency  When setting is checked, the window will become transparent when the focus is lost
Calculator
Input field  field for entering the formula. After pressing the button "=" or on the keyboard of the button Enter the formula from the window will be calculated, and the result is displayed in the corresponding field
 The context menu for inserting functions. For more information about the functions, see below in the table Prefix  field for specifying the prefix. When adding a result to the drawing, the prefix will be added to the beginning of the result.
Output field  field for outputting the result of calculating the formula.
Suffix  field for specifying the suffix. When adding a result to the drawing, the suffix will be added to the end of the result.
Rounding  The indication of the number of decimal places to which the value in the output field will be rounded.
Группа Data from drawing contains functions for obtaining values from the drawing (the value is added to the end of the line of the input field). For some data retrieval options, it is possible to retrieve data from several objects by ticking the Several. Then when you select several objects from which you want to get the values, a window for selecting the sign will appear, which will be inserted between the values:
Round  indicates whether the values obtained from the drawing are rounded to the specified number of decimal places.
 Measure the distance between two points Go to AutoCAD to query two points:
First point:
Specifying a point on the screen
Second point:
Specifying a point on the screen Get the sum of lengths from entities Switching to AutoCAD for selecting primitives:
Select lines, polylines, arcs or circles:
Selecting the appropriate entities Get coordinates Go to AutoCAD to specify a point on the screen:
Specify point:
Specifying a point on the screen
Select a coordinate [X/Y/Z]:
Selecting the corresponding coordinate of the specified point Get the area Go to AutoCAD to select an entity:
Get the area [Polyline/Hatch]:
The choice of the entity from which the area will be obtained Get value from text Go to AutoCAD to select an entity:
Select singleline or multiline text:
Select singleline or multiline textSeveral mode:
Select several singleline or multiline texts:
Select several singleline or multiline texts Get a value from the multileader Go to AutoCAD to select an entity:
Select multileader:
Select multileaderSeveral mode:
Select several multileaders:
Select several multileaders Get value from table cell Go to AutoCAD to select an entity:
Select table:
Select table
Select cell:
Selecting a cell in a tableSeveral mode:
Select table:
Select table
First corner of the frame:
Selecting the cell in the table, which will be the first corner of the selection frame
Second corner of the frame:
Select a cell in the table, which will be the second corner of the selection frame Get the value from the size Go to AutoCAD to select an entity:
Select dimension:
Select dimensionSeveral mode:
Select several dimensions:
Select several dimensionsThe group of control buttons includes buttons for adding/removing of digits in the input field, for the purification of the input field, for calculating the formula as well as certain functions. A complete list of buttons and functions (including those missing in the group of control buttons) is given in the table:
Buttons 0...9 Adding to the end of the text in the input field a digit corresponding to the pressed button . Adding a dot at the end of the text + Adding a plus sign to the end of the text in the input field  Adding a minus sign to the end of the text * Adding the "multiply" sign to the end of the text in the input field / Adding the "divide" sign to the end of the text x² Raising the second power of a number from the input field or result field (if there is no value in the input field) x³ Raising the third power of a number from the input field or result field (if there is no value in the input field) √ Extracting a square root from a number from the input field or the result field (if there is no value in the input field) ± Adding/deleting the minus sign as a result 1/х Divide the unit by the number from the input field or the result field (if there is no value in the input field) sin Returns the sine of the specified number from the input field or the result field (if there is no value in the input field) tan Returns the tangent of a given number from the input field or the result field (if there is no value in the input field) π
The display in the input field of the number "pi" ←
Erasing one (last) character in the input field C
Clear input field and output field =
Calculating the formula in the input field and displaying the result in the output field Functions not found in the group of control buttons
Abs(x)
Returns the absolute value of the specified number Acos(x)
Returns the angle whose cosine is equal to the specified number Asin(x)
Returns the angle whose sine is equal to the specified number Atan(x)
Returns the angle whose tangent is equal to the specified number Ceiling(x)
Returns the smallest integer greater than or equal to a given number Exp(x)
Returns e raised to the specified degree Floor(x)
Returns the largest integer less than or equal to a specified number IEEERemainder(x,y)
Returns the remainder of dividing the specified number by another specified number Log(x,y)
Returns the logarithm of the specified number Log10(x)
Returns the logarithm with base 10 of the specified number Max(x,y)
Returns the larger of the two specified numbers Min(x,y)
Returns the smaller of the two specified numbers Pow(x,y)
Returns the specified number raised to the specified degree Round(x,y)
Rounds a value to the nearest integer or specified number of decimal places Sign(x)
Returns the value that specifies the sign of a number Truncate(x)
Computes the integer part of a number The group Result to drawing contains functions for inserting the result from the output field into the drawing:
 Insert result as a singleline text Go to AutoCAD to insert an entity:
Insertion point:
Specifying a singleline text insertion point Add result to existing oneline text (with content replacement) Go to AutoCAD to select an entity:
Select singleline text:
Select oneline text to replace its contents insert result into a table cell Go to AutoCAD to select an entity:
Select table:
Select table
Select cell:
Selecting a cell in a table Add result to multiline text Go to AutoCAD to select an entity:
Select multiline text:
Selecting multiline text to add results to it insert result in the form of a multileader Go to AutoCAD to specify points:
Specify point:
Specifying the location of the leader arrow
Insertion point:
The location of the leader shelf
 Opens a journal in which the last calculations are displayed: If you select in the calculation journal, it will be reentered in the input field. The journal is kept only in the current session of the function. When you close and restart the function, the journal will be cleared
 Clearing the calculations journal Interpolation
Three options (selection in the dropdown list)  linear interpolation, linear extrapolation of the smaller and linear extrapolation of the larger. Calculation of the value occurs "on the fly"  i.e. when you enter the required values into cells
Degree, slope
Allows you to translate degrees and slopes into different values. Calculation of the values occurs "on the fly"  i.e. when you enter a value in any field
Download
Files with the file extension .mpif is used to install or update components and plugins in case of lack of access to the internet! ModPlus is installed using the web installer 

2020 Year
AutoCAD: Calculator 1.3.7.0 (28.03.2020)
 Added the ability to use a comma as the delimiter between the integer and fractional parts of numbers in the entered formula.
 Fixed some localization errors.
2018 Year
AutoCAD: Calculator 1.3.5.0 (19.11.2018)
 ModPlusStyle style.
 Removed window transparency.
AutoCAD: Calculator 1.3.2.0 (11.06.2018)
 Replacement of the main icons of the function with the addition of icons for the dark AutoCAD ribbon design theme.
 Replace some icons in the function window.
AutoCAD: Calculator 1.3.0.0 (18.03.2018)
 Added journal of operations.
2017 Year
AutoCAD: Calculator 1.2.5.0 (02.12.2017)
 Side menu for selecting the operating mode is removed under the button (dropdown).
 Added option "Insert result into existing singleline text with replacement".
 Added window transparency (included in the side menu) when the window loses focus.
 Added ability to round values from drawing.
 Changes in window design.
2015 Year
AutoCAD: Calculator 1.2.0.0 (07.11.2015)
 Added the section "Interpolation".
 Added the section "Degree bias".
 Various small changes.