A calculator with many functions and the ability to draw curves and make tables.

General use

Write a expression and press enter, the result will be displayed in the result field, and copied to the "Last result" page. It is also possible to to write a statement or more statements with ; between, but a valid result will only be shown when the last item on the line is a expression.
A valid expression could be:
3*4
or
sin(pi/17)*power(3,2.3)/(1+cosh(4))
To store a result for later use:
var a;
a:=3*4
Or create a permanent variable with: a, then right click and select "Create variable", this variable is stored and will last until deleted (starting/stopping the MiscEl program will not delete the variable or the value)
Right click for more options:

Result to clipboard, copy the result to the clipboard for use elsewhere
Add to statements, copy the line to the "Statements page"
Create variable, create a permanent variable, as described above
Create function, create a permanent function, see description under "Functions" page

Use cursor up/down keys to recall the last expressions entered (From the "Last results" list).

Pages in calculator

Last results

A list of the last valid lines for the calculator and the corresponding result. Double click a line to get it back onto the editing line. Right click for more options:

Result to clipboard, copy the result to the clipboard for use elsewhere
Add to statements, copy the line to the "Statements page"
Delete, remove the line

Statements

List of statements, these are evaluated every time you press enter on the edit line, by using variables it is possible to calculate the same expression/statements many times with different values. Double click to copy the statement to the editing line
Right click for more options:

Move up/down, change the execute sequence of the statements
Result to clipboard, copy the result to the clipboard for use elsewhere
Add, add current edit line to statments
Delete entry, remove the line
Save, save the statements to a file
Load, load the statements from a file

Variables

List of permanent variables, if a local variable with the same name is defined only the local variable will be changed with statements (To get rid of a local variable use free("name")).
Global variables can be used anywhere in MiscEl, but the pages will NOT update automatic when a variable is changed (Add or delete a space in a input field to update)! Right click for more options:

Result to clipboard, copy the contens of the variable to the clipboard for use elsewhere
Set value, assign the last result from the editing line to the variable
Del var, remove the global variable

Functions

List of user defined functions. To define a function write functionname=expression in the editing line, then right click and select "Create function". All parameters passed to the function can be accessed in the "param" array, first parameter as index 0.
An example (Two resistor in parallel):
par=1./(1./param[0]+1./param[1])
Use the function by writing:
par(10k,30k)
The function can contain more than one statement, use ; as a delimeter. It is also possible to define variables with the var statement, these variables are local, and not saved between invocations of the function.
CAVEAT Any user defined function will not automatic convert to floating point when dividing integers, i.e. 5/2 will always be 2 in a user defined function! A typecast MUST be used (see above example for one way to handle the problem).
Functions can be used anywhere in MiscEl.
Double click to copy the function to the editing line
Right click for more options:

Result to clipboard, copy the result to the clipboard for use elsewhere
Add, define current editing line as a function
Del, remove the selected function

Const

A list of many different physical (and other) constants. Many of these constants can be directly used in expression anywhere in MiscEl. Use Category to select between different groups of constants. The rows displayet are:

Name of the constant
Symbol or name that can be used in MiscEl
Value of the constant, this value is displayed according to the selected numerical display format
Unit

Double click to copy the constant to the editing line
Right click for more options:

Use, same as a doubleclick, copy the constant to the editing line
Use value, copy the numerical value of the constant to the editing line
To clipboard, copy the numerical value of the constant to clipboard

Curve / Table setup

Define formulas for drawing a curve or making a table.
Fields:

X	The x-axis definition, usual just a t
Y1	The first curve/column, write a expression with t as independ variable
Y2	The second curve/column, write a expression with t as independ variable
Start	Starting value for t
End	Final value for t
Steps	Number of steps between starting and ending value, the X/Y1/Y2 are calculated once for each step
Log steps	Use logarithmic steps
Auto scale	Automatic scale the graph to contain the curve
Use same scale	Y1 and Y2 is displayed with the same scale
Left/Right	Min/Max X value displayed
Bottom/Top	Min/Max Y value displayed
Log x/y scale	Use logarithmic scales
Draw	Make a curve
Fill	Make a table

Help

Shortform help for the calculator

Curve

Curve generated from "Curve / Table setup"
Right click for more options:

Curve to clipboard, copy the curve picture to the clipboard for use elsewhere

Table

Table generated from "Curve / Table setup"
Right click for more options:

Table to clipboard, copy the table data to the clipboard for use elsewhere, a TAB delimetered format is used
Table to clipboard XY, copy the X and Y from the table to the clipboard for use elsewhere, a TAB delimetered format is used
Table to clipboard Y, copy the Y data from the table to the clipboard for use elsewhere, a TAB delimetered format is used

Result

This page is used for large result

Specifications

Numbers

Numbers can be entered in a varity of ways:

Just the number, as in 123
Binary, as in 1001B or 1001b
Octal, as in 177O or 177o
Hex, as in 1f5H or 1f5h or 0X1f5 or 0x1f5 or $1f5, all values must start with a digit in the 0..9 range, ffh is not valid, use 0ffh
Decimal, as in 12.34. Only . (point) is accepted as decimal point, a , (comma) is used as a parameter delimeter and can not be used as decimal point
Exponent as in 12.34e3 or 12.34E3 or 12e3 or 12E3 (When E is used without a number after, it is a SI prefix and multiplies with 1E18)
With appended SI prefix as in 12.34k or 12.34M, accepted prefix are YZEPTGMKkcmuľnpfazy
With SI prefix as point, as in 12k34 or 12u34, accepted prefix are YZPTGMKkcmuľnpfazy (i.e. E is missing)
With binary SI prefix, as in 12ki=1024, accepted prefix are YZEPTGMKk

u is used as a easy typeable alternative to ľ, k is accepted as both lower and upper case, all other prefixes must be in correct case

Operators

()	Brackets
*	Multiplication
/	Division
%	Returns the remainder of a division, only supported for integers
+	Addition
-	Subtraction
BitOr	Bitwise OR function, only supported for integers
BitAnd	Bitwise AND function, only supported for integers
BitXOR	Bitwise XOR function, only supported for integers
= or ==	Equal, result is False=0, True=1
<>	Not equal, result is False=0, True=1
<	Less, result is False=0, True=1
<=	Less equal, result is False=0, True=1
>	Greater, result is False=0, True=1
>=	Greater equal, result is False=0, True=1
\| or OR	Logical or (0=False, all other values=True), only supported for integers, result is False=0, True=1
& or AND	Logical and (0=False, all other values=True), only supported for integers, result is False=0, True=1
integer?expression1:expression2	Returns expression1 if integer is non-zero else result is expression2

Statements

expression	Any expression can be used as a statement
variable:=expression	Assignment to a variable is a statement (variables must be created before use)
var name;	Create a local variable named "name", this variable will not be shown on the "Variables" page and not saved, defining a variable multiple times is valid and will not change the value of the variable
if (expression) statements else statements endif	A if statement with or without the else part

This list is not complete

Datatypes

Automatic type conversion will hide the actuel datatype in many cases, but it is possible to force type conversion with typename(value) i.e. integer(pi) will return a integer (with the value 3). Be carefull with division: 5/2 is either 2 or 2.5 depending on datatype and automatic conversion to real setting (Watch out in user defined functions), (5./2 or (real(5)/2 is always 2.5).
Use VarType(Variable) to check the type of a variable.

Integer	Numbers without a decimalpoint i.e. 1 2 3 4 etc.
Real	Numbers with the posibility for a decimalpoint i.e. 1.7 3.14 etc. (these numbers can also be without digits after the decimal point)
Complex	Two real numbers, saved as r and i, only some operations are supported on complex numbers
String	Any sequence of characters, most mathematical operations are not supported on this type
Array	A list of datatypes, accessed with [index], the first element is always 0

This list is not complete

Functions

Sin/Cos/Tan/ArcSin/ArcCos/ArcTan

Standard trigonometric functions

todB/todBpwr/fromdB/fromdBpwr

Convert to and from dB

ArcTan2(y,x)

ArcTan(y/x) angle is in the correct quadrant

CoTan(x)

Same as 1/tan(x)

Hypot(x,y)

Same as sqrt(sqr(x)+sqr(y))

sinh/cosh/tanh/ArcSinh/ArcCosh/arcTanh

Hyperbolic trigonometric functions

Ln/Log10/Log2

Logarithm functions Natural/base 10/base 2

LogN(Base,x)

Logarithm with any base

Power(value,exponent)

Raises value to exponent

Exp(x)/ALn(x)

Raises e to the power of x

ALog(x)

Raises 10 to the power of x

Returns e (base of the natural logarithms)

Returns pi

sqr(x)

Returns x*x

sqrt(x)

Returns square root of x

SolveSqr(x2,x,c)

Solve a quadrantic equation, the result array may contain complex numbers

SolvePoly(xn,xn-1,....,x,c)/SolvePoly(array)

Solve a n degree polynomial, the result array may contain complex numbers

EvalPoly(v,xn,xn-1,....,x,c)/EvalPoly(v,array)

Evaluate a polynomial

InterpolateSpline(x,x1,y1,x2,y2,x3,y3,....)/InterpolateSpline(x,Array)

Interpolate y from x using spline function

Array(v1,v2,v3,v4)

Create a array, first value is placed at index 0

Arrayr(v1,v2,v3,v4)

Create a array, last value is placed at index 0

hex/dec/oct/bin

Returns a hex/dec/oct/bin string of the integer part of the value

cpx(r,i)/complex(r,i)

Create a complex number

int(x)

Cuts any digits after the point

frac(x)

Returns only digits after the point

ComplexAngle(x)

Returns the angle of a complex number

ComplexVector(x)

Returns the vector length of a complex number

ComplexR(x)

Returns the real part of a complex number

ComplexI(x)

Returns the complex part of a complex number

StdR(x)/StdC(x)/StdL(x)

Round value to standard for specified component

StdE3(x)/.../StdE192(x)

Round value to specified standard

FilterLP1(f0,f)

Calculate the attenuation in dB for a first order low pass filter with 3 dB frequence f0 at frequence f

FilterHP1(f0,f)

Calculate the attenuation in dB for a first order high pass filter with 3 dB frequence f0 at frequence f

FilterLP1cpx(f0,f)

Calculate the complex factor for a first order low pass filter with 3 dB frequence f0 at frequence f

FilterHP1cpx(f0,f)

Calculate the complex factor for a first order high pass filter with 3 dB frequence f0 at frequence f

RIAA(freq)

Convert a frequence to RIAA dB value

RIAAIEC(freq)

Convert a frequence to RIAA, with IEC modification dB, value

RIAAcpx(freq)

Calculate the complex factor for a frequence according to the RIAA specification "todB(ComplexVector(RIAAcpx(freq)))" is the same as "RIAA(freq)"

RIAAIECcpx(freq)

Calculate the complex factor for a frequence according to the RIAA, with IEC modification, specification

CRC8(poly,initial,string)/CRC16(poly,initial,string)/CRC32(poly,initial,string)

Calculate crc for specified string. Some standard poly's:

Poly	Initial	Test "123456789"	Name
$a001*	0	BB3D	CRC16 standard crc-16
$8408	$ffff	29B1	CRC16 CITT (REMARK: a bitreversal is automatic done when using this poly)
$edb88320*	$ffffffff	CBF43926	CRC32 Standard crc-32 (REMARK: output is automatic inverted when using this poly)

All other poly's are calculated without special handling.
*Using 0 as poly will preload this poly and initial value, ie. using crc32(0,0,data) is the same as using crc32($edb88320,$ffffffff,data);
I your need code for crc calculations see CRC calculations
Remark:All these functions are working with inverted poly's, see CRC and Checksum hints for more explanation

CRCPoly(coefficients)

Calculate a poly value from a list of coefficients i.e. CRCPoly(16,15,2,0) gives $a001 as poly value for x^16+x^15+x^2+x^0

CRCPolyReverse(ReversePolyValue)

Reverse all bits in poly value. The poly value used here is with lsb coefficient FIRST and msb-1 coefficient last

BoxSurface(x,y,z)

Calculates the surface area of a box. To estimate the mass of the box use (for a 10*20*30cm box made of 1mm aluminium): BoxSurface(100m,200m,300m)*1m*aluminium_density

UnitConversion(FromUnit,ToUnit,Value)

Convert a value between any two units. Both full and short unit names can be used.
Example: UnitConversion("atm","mmHg",1)

ToSI(Unit,Value)

Convert a value to corrosponding SI unit

FromSI(Unit,Value)

Convert a value to from corrosponding SI unit

This list is not complete

Other pages

A small version of the calculator: TinyCalc (Draw it outside the MiscEl frame)
Crc calculations: CRC and checksum
Crc code: CRC calculations
Serial/parallel connection of R/L/C: Series/parallel
Ohms law and impedance of L/C: Ohms law
dB conversions: dB
Math on a small MPU: Integer math
Geometry figures: Geometry

MiscEl: Calculator

General use

Pages in calculator

Last results

Statements

Variables

Functions

Const

Curve / Table setup

Help

Curve

Table

Result

Specifications

Numbers

Operators

Statements

Datatypes

Functions

Other pages