It has been a year since I wrote the original MiniCalc, and almost that long since I first ported it from QB.
I've kept MiniCalc in my QuickLaunch tray, and used it frequently, so I decided MiniCalc 2 would be very useful. MiniCalc is a console mode, command line based calculator that can process expressions such as, "1+COS(PI/2)+SQR(81)."
Now compilable with -lang fb, and much cleaner source, this version allows user-defined functions, which it saves for future sessions. It also adds ASIN(), ACOS(), LN(), LOG(), ABS(), INT(), FRAC(), equality tests, and many other functions, such as FT_MI() (feet to miles).
Read the changes.txt file, and type HELP into the calculator, for more info.
Sample I/O, showing MiniCalc capabilities:
(note the assignment operator, Chr(26), is shown here as " >> " and can be typed with the TAB key)
Code: Select all
MiniCalc2 > 1-2(-3-4(-5(-6)))
> 247
MiniCalc2 > SQR(81)
> 9
MiniCalc2 > COS(PI)
> -1
MiniCalc2 > 55 >> MYVAR
> 55
MiniCalc2 > 2MYVAR
> 110
MiniCalc2 > LOG(10^(MYVAR+1))
> 56
MiniCalc2 > ASIN(SIN(-1))
> -1
MiniCalc2 > 3!!
> 720
MiniCalc2 > 2X+5 >> MYFUNCTION()
> 5
MiniCalc2 > MYFUNCTION(-6)
> -7
MiniCalc2 > MYFUNCTION(MYVAR)
> 115
MiniCalc2 > SQR(2^8)
> 16
MiniCalc2 > 1=2
> 0
MiniCalc2 > 8=9-1
> 1
MiniCalc2 > 1>=-1
> 1
MiniCalc2 > PI<>E
> 1
MiniCalc2 > 20(50%)
> 10
MiniCalc2 > *10
> 100
MiniCalc2 > FT_IN(ANS/50)
> 24
MiniCalc2 > F_C(212)
> 100
MiniCalc2 > LB_TON(10000)
> 5
MiniCalc2 > TBSP_TSP(1)
> 3
MiniCalc2 > TINY
> 1.e-014
MiniCalc2 > GAL_L(1)
> 3.785411784
MiniCalc2 > FIX(PI)
> 3
MiniCalc2 > FRAC(PI)
> 0.1415926535897931
MiniCalc2 > ABS(-RND)
> 0.2869140012189746
MiniCalc2 > ROUND(RND*100)
> 68
MiniCalc2 > ROUND(RND*100)
> 8
MiniCalc2 > 0 >> PI
> 0
MiniCalc2 > SIN(PI)
> 0
MiniCalc2 > PI
> 0
MiniCalc2 > LN(256E)
> 6.545177444479562
MiniCalc2 > LN(E^4)
> 4
MiniCalc2 > 1+(E>2)+100(MYVAR=55)+10000(3<>3)
> 102
Code: Select all
MiniCalc change log
(C) 2007 i-TECH and Kristopher Windsor
New to version 2.0:
Added:
Supports functions (see variable changes)
Supports Home and End keys
Supports Logarithms, Arcsines, and Arccosines
Saves user defined variables for future sessions
Equality operators "= < > >= <= <>"
Functions such as FIX() and CUBED(), and many measurement conversion functions, although not built into the calculator, are available (defined in external file)
Individual variables can now be erased (just assign a null value to them, i.e. ">> F()")
Changed:
Now compiles without QB compatibility mode, in just 56K
Support for more variables, history, recursion
Parsing method now evaluates "3+!5" as "3!+5," not "3+5"
Variables
Variables are now equations, not scalar variables
Variable names cannot use odd characters, but can be more than a single character long
Parsing method now evaluates "PIPI" as the variable "PIPI," not as pi squared (use "PI*PI" or "PI(PI)" for pi squared)
The equals sign is now an equality tester (not the assignment operator), and the TAB key produces the assignmnet operator is used for creating variables
Variables and functions such as "PI" and "K_C()" are now defined in an external file, so they can be redefined by the user
Supports functions, which are variables, where variable "X" in the expression is an input value
Differentiated from variables with trailing parenthesis (i.e. "2^X >> EXPONENT()")
Can be used with or without a value in parenthesis (i.e. "EXPONENT2" or "EXPONENT(1+2)")
"F(" now validates to "F" (error), instead of "F(0)"
Removed:
Sketchpad (impractical)
Width / Display option (smaller screen option was unnecessary)
Virtual Keyboard support (impractical)
Clear option (would erase all variables, including PI with the new variable structure)
(required for use of many variables and functions, including PI)
MiniCalc2.bas:ABS()
X-2X(X<0)
C_F()
9X/5+32
CM_IN()
X/2.54
CUBED()
X*X*X
CUBEROOT()
X^(1/3)
CUP_FLOZ()
8X
CUP_GAL()
X/8
CUP_PT()
X/2
CUP_QT()
X/4
CUP_TBSP()
16X
CUP_TSP()
48X
DEG_RAD()
X*PI/180
E
2.718281828459045
F_C()
5*(X-32)/9
FIX()
INT(X)+((X<0)+(INT(X)<>X)=2)
FLOZ_CUP()
X/8
FLOZ_ML()
29.5735295625X
FLOZ_TBSP()
2X
FLOZ_TSP()
6X
FRAC()
X-FIX(X)
FT_IN()
12X
FT_MI()
X/5280
FT_YD()
X/3
GAL_CUP()
16X
GAL_L()
3.785411784X
GAL_PT()
8X
GAL_QT()
4X
HUGE
100000000000000
IN_CM()
2.54X
IN_FT()
X/12
IN_YD()
X/36
IN_MI()
X/63360
KM_MI()
.6213711922373341X
LB_OZ()
16X
LB_TON()
X/2000
L_GAL()
.2641720523581485X
L_QT()
1.056688209432594X
LOG()
LN(X)/LN(10)
M_YD()
1.093613298337708X
MI_FT()
5280X
MI_IN()
63360X
MI_KM()
1.609344X
MI_YD()
1760X
ML_FLOZ()
.033814022701843X
OZ_LB()
X/16
PI
3.141592653589793
PT_CUP()
2X
PT_GAL()
X/8
PT_QT()
X/2
QT_CUP()
4X
QT_GAL()
X/4
QT_L()
.946352946X
QT_PT()
2X
RAD_DEG()
X*180/PI
ROUND()
INT(X+.5)
SGN()
1-2(X<0)-(X=0)
SQUARED()
X*X
SQUAREROOT()
SQR(X)
TBSP_CUP()
X/16
TBSP_FLOZ()
X/2
TBSP_TSP()
3X
TON_LB()
2000X
TSP_CUP()
X/48
TSP_FLOZ()
X/6
TSP_TBSP()
X/3
TINY
1/HUGE
X
0
YD_FT()
3X
YD_IN()
36X
YD_M()
.9144X
YD_MI()
X/1760
Code: Select all
' MiniCalc! Version 2.0
' (C) 2007 i-TECH and Kristopher Windsor
Const true = -1, false = 0, program_title = "MiniCalc2 > "
Const history_max = 128
Const calculate_char_assignment = Chr(26)
Const calculate_char_number = "1234567890.", calculate_char_var = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_", calculate_char_operator = "=<>+-*/^"
Const calculate_char_allowed = calculate_char_number & calculate_char_var & calculate_char_operator & calculate_char_assignment & "()%!"
Const calculate_expression_max = 128
Const calculate_number_unspecified = -0.907379150390625 'random hidden value
Const calculate_variable_max = 2048
Const text_margin = 10, text_size_max = 147, text_line_max = 3, text_window_width = 80
Type calculate_variable
As String title
As String expression
As Integer isfunction 'will replace 'x' in expression with another expression
As Integer ison
End Type
Dim Shared As Integer calculate_error, calculate_depth
Dim Shared As calculate_variable calculate_variables(1 To calculate_variable_max)
'[C:\itech\Misc\MiniCalcReloaded\MiniCalc.bas]
'[Declarations generated at 22:00:27 on 09-15-2007]
Declare Function calculate_evaluate (Byref equation As String, ans As Double = 0, Byref xvalue As Double = calculate_number_unspecified) As Double
'[starts at line #90; ends at line #342; is 251 lines long]
'[this function is called by the following subs and functions]
'calculate_evaluate at line #130
'calculate_evaluate at line #216
'calculate_evaluate at line #259
'calculate_evaluate at line #260
'calculate_evaluate at line #262
'program_main at line #609
'[this function calls the following subs and functions]
'calculate_evaluate at line #130
'calculate_evaluate at line #216
'calculate_evaluate at line #259
'calculate_evaluate at line #260
'calculate_evaluate at line #262
Declare Sub calculate_validate (Byref t As String)
'[starts at line #344; ends at line #399; is 54 lines long]
'[this sub is called by the following subs and functions]
'program_main at line #565
Declare Sub calculate_variable_add (Byref t As String)
'[starts at line #401; ends at line #434; is 32 lines long]
'[this sub is called by the following subs and functions]
'program_main at line #608
Declare Sub calculate_variable_load
'[starts at line #436; ends at line #458; is 21 lines long]
'[this sub is called by the following subs and functions]
'program_start at line #478
Declare Sub calculate_variable_save
'[starts at line #460; ends at line #475; is 14 lines long]
'[this sub is called by the following subs and functions]
'program_finish at line #619
Declare Sub program_start
'[starts at line #477; ends at line #479; is 1 lines long]
'[this sub is called by the following subs and functions]
'the main program at line #625
'[this sub calls the following subs and functions]
'calculate_variable_load at line #478
Declare Sub program_main
'[starts at line #481; ends at line #616; is 134 lines long]
'[this sub is called by the following subs and functions]
'the main program at line #626
'[this sub calls the following subs and functions]
'calculate_validate at line #565
'calculate_variable_add at line #608
'calculate_evaluate at line #609
Declare Sub program_finish
'[starts at line #618; ends at line #623; is 4 lines long]
'[this sub is called by the following subs and functions]
'the main program at line #627
'[this sub calls the following subs and functions]
'calculate_variable_save at line #619
Function calculate_evaluate (Byref equation As String, ans As Double = 0, Byref xvalue As Double = calculate_number_unspecified) As Double
Dim As Integer a, b, d, u, factorial_power, number_current, number_negation, operator_current, string_start, variable_index
Dim As Double temp, numbers(1 To calculate_expression_max)
Dim As String character_current, temp_string, variable_title
Dim As String operators(1 To calculate_expression_max)
#macro calculate_number_add()
number_current = number_current + 1: numbers(number_current) = temp * number_negation: number_negation = 1
#endmacro
#macro calculate_simplify()
For b = a + 1 To number_current - 1
Swap numbers(b), numbers(b + 1)
Next b
number_current -= 1
For b = a To operator_current - 1
Swap operators(b), operators(b + 1)
Next b
operator_current -= 1
#endmacro
If equation = "" Or calculate_depth > 64 Then calculate_error = -1: Return 0
calculate_depth += 1: number_negation = 1
'step 1 - extract numbers and operators
For a = 1 To Len(equation)
character_current = Mid(equation, a, 1)
If number_current > operator_current Then operator_current = operator_current + 1: operators(operator_current) = "*"
'parenthesis
If character_current = "(" Then
string_start = a: d = 1
Do
a = a + 1
Select Case Mid(equation, a, 1)
Case "(": d = d + 1
Case ")": d = d - 1
End Select
Loop Until d = 0
temp = calculate_evaluate(Mid(equation, string_start + 1, a - string_start - 1), ans, xvalue)
calculate_number_add()
Elseif Instr(calculate_char_number, character_current) Then
string_start = a
Do
a += 1
Loop Until Instr(calculate_char_number, Mid(equation, a, 1)) = 0 Or a > Len(equation)
temp = Val(Mid(equation, string_start, a - string_start))
a -= 1
calculate_number_add()
Elseif Instr(calculate_char_operator, character_current) Then
'operators
string_start = a
Do
a += 1
Loop Until Instr(calculate_char_operator, Mid(equation, a, 1)) = 0 Or a > Len(equation)
a -= 1
temp_string = Mid(equation, string_start, a - string_start + 1) 'overrides default (implied) multiplication
For b = 1 To Len(temp_string)
If Mid(temp_string, b, 1) = "-" Then Mid(temp_string, b, 1) = "+": number_negation *= -1
Next b
If Instr(" <> >< >= => <= =< ", " " & temp_string & " ") = 0 Then temp_string = Left(temp_string, 1)
If number_current + operator_current = 0 Then
number_current = 1: operator_current = 1
operators(1) = temp_string
If temp_string = "+" Then
numbers(1) = 0 'changes [+2] to [0+2]
Else
numbers(1) = ans 'changes [*2] to [ans*2]
End If
Else
operators(operator_current) = temp_string
End If
Elseif character_current = "%" Then
If number_current = 0 Then number_current = 1: numbers(1) = ans
numbers(number_current) /= 100
Elseif character_current = "!" Then
'factorials (like an operator, but not because 2!+3 cannot be calculated if factorials are operators)
If number_current = 0 Then number_current = 1: numbers(1) = ans
numbers(number_current) = Abs(Int(numbers(number_current)))
factorial_power = numbers(number_current): numbers(number_current) = 1
If factorial_power > 171 Then factorial_power = 171
For b = 2 To factorial_power
numbers(number_current) *= b
Next b
numbers(number_current) = numbers(number_current) * Sgn(factorial_power)
If numbers(number_current) = -1 Then calculate_error = -1
Elseif Instr(calculate_char_var, character_current) Then
'functions and varibles
'find length of variable name
string_start = a
Do
a += 1
Loop Until Instr(calculate_char_var, Mid(equation, a, 1)) = 0 Or a > Len(equation)
variable_title = Mid(equation, string_start, a - string_start)
a -= 1
If variable_title = "X" And xvalue <> calculate_number_unspecified Then
temp = xvalue 'calculate_evaluate(expression, ans)
Elseif variable_title = "ANS" Then
temp = ans
Elseif variable_title = "RND" Then
temp = Rnd
Else
If Instr(" ACOS ASIN ATAN COS INT LN SIN SQR TAN ", " " & variable_title & " ") Then
'built-in functions
'get function x value
string_start = a + 1
If Mid(equation, a + 1, 1) = "(" Then
'loop until proper depth is reached
d = 0
Do
a += 1
If Mid(equation, a, 1) = "(" Then d += 1
If Mid(equation, a, 1) = ")" Then d -= 1
Loop Until d = 0
Else
'loop until end of number is found
Do
a += 1
Loop Until (Instr(calculate_char_number, Mid(equation, a, 1)) = 0 Or a > Len(equation))
a -= 1
End If
temp_string = Mid(equation, string_start, a - string_start + 1)
temp = calculate_evaluate(temp_string, ans, xvalue) 'calculate xvalue for built-in function
Select Case variable_title
Case "ACOS": temp = Acos(temp)
Case "ASIN": temp = Asin(temp)
Case "ATAN": temp = Atn(temp)
Case "COS": temp = Cos(temp)
Case "INT": temp = Int(temp)
Case "LN": temp = Log(temp)
Case "SIN": temp = Sin(temp)
Case "SQR": temp = Sqr(temp)
Case "TAN": temp = Tan(temp)
End Select
Else
'see if variable is defined
variable_index = 0
For b = 1 To calculate_variable_max
With calculate_variables(b)
If variable_title = .title And .ison Then variable_index = b
End With
Next b
If variable_index > 0 Then
'if a function, then get xvalue (next value in equation)
If calculate_variables(variable_index).isfunction Then
'get function input value
string_start = a + 1
If Mid(equation, a + 1, 1) = "(" Then
'loop until proper depth is reached
d = 0
Do
a += 1
If Mid(equation, a, 1) = "(" Then d += 1
If Mid(equation, a, 1) = ")" Then d -= 1
Loop Until d = 0
Else
'loop until end of number is found
Do
a += 1
Loop Until (Instr(calculate_char_number, Mid(equation, a, 1)) = 0 Or a > Len(equation))
a -= 1
End If
temp_string = Mid(equation, string_start, a - string_start + 1)
temp = calculate_evaluate(temp_string, ans, xvalue) 'calculate xvalue for function
temp = calculate_evaluate(calculate_variables(variable_index).expression, ans, temp) 'calculate function value
Else
temp = calculate_evaluate(calculate_variables(variable_index).expression, ans) 'calculate variable value
End If
Else
Print Spc(12); variable_title & " is undefined"
temp = 0
calculate_error = true
End If
End If
End If
calculate_number_add() 'built-in variable, built-in function, user defined: all add temp variable
End If
Next a
If number_current = operator_current Then operator_current -= 1
'step 2 - simplify
If operator_current Then
a = 1
Do
If operators(a) = "^" Then
numbers(a) ^= numbers(a + 1)
calculate_simplify()
Else
a += 1
End If
Loop Until a > operator_current
a = 1
Do
b = a
Select Case operators(a)
Case "*"
numbers(a) *= numbers(a + 1)
Case "/"
numbers(a) /= numbers(a + 1)
Case Else: a += 1
End Select
If a = b Then
calculate_simplify()
End If
Loop Until a > operator_current
a = 1
Do
If operators(a) = "+" Then
numbers(a) += numbers(a + 1)
calculate_simplify()
Else
a += 1
End If
Loop Until a > operator_current
a = 1
Do
b = a
Select Case operators(a)
Case "="
numbers(a) = Iif(numbers(a) = numbers(a + 1), 1, 0)
Case "<"
numbers(a) = Iif(numbers(a) < numbers(a + 1), 1, 0)
Case ">"
numbers(a) = Iif(numbers(a) > numbers(a + 1), 1, 0)
Case "<=", "=<"
numbers(a) = Iif(numbers(a) <= numbers(a + 1), 1, 0)
Case ">=", "=>"
numbers(a) = Iif(numbers(a) >= numbers(a + 1), 1, 0)
Case "<>", "><"
numbers(a) = Iif(numbers(a) <> numbers(a + 1), 1, 0)
Case Else
a += 1
End Select
If a = b Then
calculate_simplify()
End If
Loop Until a > operator_current
End If
calculate_depth -= 1
If calculate_error Then Return 0 Else Return numbers(1)
End Function
Sub calculate_validate (Byref t As String)
Dim As Integer a, b, d
Dim As String assignment
a = Instr(t, calculate_char_assignment)
If a > 0 Then
'remove duplicate assignment characters
While Instr(a + 1, t, calculate_char_assignment) > 0
b = Instr(a + 1, t, calculate_char_assignment)
t = Left(t, b - 1) + Right(t, Len(t) - b)
b -= 1
Wend
'mode assignment to a seperate string
assignment = Right(t, Len(t) - a)
t = Left(t, a - 1)
End If
For a = 1 To Len(t)
If Instr(calculate_char_allowed, Mid(t, a, 1)) = 0 Then t = Left(t, a - 1) + Right(t, Len(t) - a): a -= 1
Next a
d = 0
For a = 1 To Len(t)
Select Case Mid(t, a, 1)
Case "("
d = d + 1
Case ")"
If d = 0 Then
Mid(t, a, 1) = "(": d = d + 1
Else
d = d - 1
End If
End Select
Next a
t = Ucase(t) + String(d, ")")
Do
a = Instr(t, "()")
If a Then t = Left(t, a - 1) + Right(t, Len(t) - a - 1)
Loop Until a = 0
If Len(assignment) Then
'avoid parenthesis while validating function name
d = Right(assignment, 2) = "()"
If d Then assignment = Left(assignment, Len(assignment) - 2)
'see if variable did not have a name
If Len(assignment) > 0 Then
'validate variable / function name
For a = 1 To Len(assignment)
If Instr(calculate_char_var, Mid(assignment, a, 1)) = false Then Mid(assignment, a, 1) = "_"
Next a
t += calculate_char_assignment & assignment
If d Then t += "()"
End If
End If
End Sub
Sub calculate_variable_add (Byref t As String)
'add a variable, and remove variable assignment character from string
Dim As Integer a, isfunction, variable_free, variable_index
Dim As String variable_title
a = Instr(t, calculate_char_assignment)
If a = 0 Then Exit Sub
variable_title = Right(t, Len(t) - a)
isfunction = Right(variable_title, 2) = "()"
If isfunction Then variable_title = Left(variable_title, Len(variable_title) - 2)
t = Left(t, a - 1)
For a = 1 To calculate_variable_max
With calculate_variables(a)
If .ison Then
If .title = variable_title Then variable_index = a
Else
variable_free = a
End If
End With
Next a
If variable_index = 0 Then variable_index = variable_free
If variable_index = 0 Then calculate_error = true: Exit Sub
'works whether variable was already created, or not
With calculate_variables(variable_index)
.title = variable_title
.expression = t
.isfunction = isfunction
.ison = Len(t) > 0
End With
End Sub
Sub calculate_variable_load
Dim As Integer a
Dim As String l
Open "variables.dat" For Input As #1
If Err Then Exit Sub
While Not Eof(1)
a += 1
With calculate_variables(a)
Line Input #1, l
.isfunction = Right(l, 2) = "()"
If .isfunction Then l = Left(l, Len(l) - 2)
.title = l
Line Input #1, .expression
.ison = true
Line Input #1, l 'blank line
End With
Wend
Close #1
End Sub
Sub calculate_variable_save
Dim As Integer a
Open "variables.dat" For Output As #1
For a = 1 To calculate_variable_max
With calculate_variables(a)
If .ison Then
Print #1, .title;
If .isfunction Then Print #1, "()" Else Print #1,
Print #1, .expression
Print #1,
End If
End With
Next a
Close #1
End Sub
Sub program_start
calculate_variable_load
End Sub
Sub program_main
Dim As Integer a, b, history_current, text_color, text_cursor_location, text_cursor_row, text_cursor_toggle
Dim As Double ans
Dim As String key, t
Dim As String history(1 To history_max)
Randomize Timer
Width 80,25
Color 15
Cls
Locate 1, 1, 0
text_color = 9
Print program_title + "(C) 2007 Kristopher Windsor"
Print
Do
text_color = (text_color - 9) Mod 5 + 10: Color text_color
text_cursor_row = Csrlin
While text_cursor_row > 20
text_cursor_row = text_cursor_row - 1
Locate 25: Print
Wend
If t > "" And t <> history(history_max) Then
For a = 1 To history_max - 1
Swap history(a), history(a + 1)
Next a
history(history_max) = t
End If
history_current = history_max + 1
text_cursor_location = 0
text_cursor_toggle = 0
key = ""
t = ""
Do
Select Case key
Case Chr(255, 71) 'home
text_cursor_location = 0
Case Chr(255, 72) 'up arrow
If history_current > 1 Then
If Len(history(history_current - 1)) > 0 Then
history_current -= 1
t = history(history_current)
text_cursor_location = Len(t)
End If
End If
Case Chr(255, 75) 'left arrow
If text_cursor_location > 0 Then text_cursor_location -= 1
Case Chr(255, 77) 'right arrow
If text_cursor_location < Len(t) Then text_cursor_location += 1
Case Chr(255, 79) 'end
text_cursor_location = Len(t)
Case Chr(255, 80) 'down arrow
Select Case history_max - history_current
Case 0
history_current += 1
t = ""
Case Is >= 1
history_current += 1
t = history(history_current)
text_cursor_location = Len(t)
End Select
Case Chr(255, 83) 'delete
If text_cursor_location < Len(t) Then t = Left(t, text_cursor_location) + Right(t, Len(t) - text_cursor_location - 1)
Case Chr(8) 'backspace
If text_cursor_location > 0 Then t = Left(t, text_cursor_location - 1) + Right(t, Len(t) - text_cursor_location): text_cursor_location -= 1
Case Chr(27), Chr(255, 107) 'escape or alt-f4
Exit Sub 'program_quit
Case Else
If Len(key) = 1 And Len(t) < text_size_max And Instr(calculate_char_allowed, key) > 0 Then
t = Left(t, text_cursor_location) + key + Right(t, Len(t) - text_cursor_location)
text_cursor_location += 1
End If
End Select
Locate text_cursor_row, 1
Print Left(program_title + Left(t, text_cursor_location) + Chr(95 + (text_cursor_toggle) * 73) + Right(t, Len(t) - text_cursor_location) + Space(text_line_max * text_window_width), _
text_line_max * text_window_width);
If Len(key) = 0 Then Sleep 250: text_cursor_toggle = Not text_cursor_toggle
key = Ucase(Inkey)
If key = Chr(9) Then key = calculate_char_assignment
Loop Until key = Chr(13)
calculate_validate t
For a = text_cursor_row To text_cursor_row + text_line_max - 1
Locate a, 1
Print Space(text_window_width);
Next a
Locate text_cursor_row, 1: Print program_title + t
Select Case t
Case ""
Print Spc(12); "Press [Esc] to Quit"
Case "CLS": Cls : Print program_title + "CLS"
Case "EXIT": Exit Sub
Case "HELP"
Print
Print Spc(12); "--Built-in Variables--"
Print Spc(12); "ACOS() ASIN() ANS RND ATAN() COS()"
Print Spc(12); "INT() LN() SIN() SQR() TAN()"
Print
Print Spc(12); "--Commands--"
Print Spc(12); "CLS,EXIT,HELP,SMILEY,VARS"
Print
Print Spc(12); "--Assigning Variables--"
Print Spc(12); "1+(2*3)" & calculate_char_assignment & "X || 2X+3" & calculate_char_assignment & "FUNCTION()"
Print
Case "SMILEY"
Print Spc(12); Chr(1, 32, 2)
Case "VARS"
Print
Print Spc(12); "--Assigned Variables--"
For a = 1 To calculate_variable_max
With calculate_variables(a)
If .ison Then
Print Spc(12);
Print .title;
If .isfunction Then Print "()";
Print "=" & .expression
Sleep 100
End If
End With
Next a
Print
Case Else
calculate_error = 0
calculate_variable_add t 'attempt to add variable
If Len(t) > 0 Then ans = calculate_evaluate(t, ans)
If Abs(ans) < 1E-15 Then ans = 0
End Select
Print Spc(text_margin); "> " + Ltrim(Str(ans)); : If calculate_error Then Print " (Error)";
Print : Print
Loop
End Sub
Sub program_finish
calculate_variable_save
Color 7
Locate ,, 1
Cls
End Sub
program_start
program_main
program_finish
System
http://fbc.ourproject.org/view.php?t=minicalc_2
The thread for the original MiniCalc is here:
http://www.freebasic.net/forum/viewtopi ... t=minicalc
XD
