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ede/ecalc/SciCalc.fl

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Older ede2 code based on fltk2.
2007-07-18 22:20:04 +04:00
# data file for the Fltk User Interface Designer (fluid)
version 1.0108
header_name {.h}
code_name {.cpp}
decl {\#include <stdio.h>} {}
decl {\#include <stdlib.h>} {selected global
}
decl {\#include <string.h>} {global
}
decl {\#include "math.h"} {}
Function {gammaln(double xx)} {open private return_type double
} {
code {int j;
double x,y,tmp,ser;
static double cof[6] = {76.18009172947146,
-86.50532032941677,
24.01409824083091,
-1.231739572450155,
0.1208650973866179e-2,
-0.5395239384953e-5};
y = x = xx;
tmp = x + 5.5;
tmp -= (x+0.5)*log(tmp);
ser = 1.000000000190015;
for (j=0;j<6;j++) ser += cof[j]/++y;
return -tmp+log(2.5066282746310005*ser/x);} {}
}
Function {truncf(double x)} {private return_type double
} {
code {if (x < 0.0)
x = -floor(-x);
else
x = floor(x);
return x;} {}
}
class SciCalc {open
} {
decl {enum {MaxNumBrkts=10};} {}
decl {enum Operator {PLUS,MINUS,MULT,DIV,POW,INVPOW,EVAL};} {}
decl {enum mode {NONE=0,DOT=-1,NORM=-2,EXP=-3};} {}
declblock {/* members */} {after {/********/}
} {
decl {double value[4*(MaxNumBrkts+1)]; /* The values on the stack */} {}
decl {int priority[6]; /* the priorities of each operator */} {}
decl {int oper[3*(MaxNumBrkts+1)]; /* the operators between them */} {}
decl {int top; /* the top of the stack */} {}
decl {int startbrkt[(MaxNumBrkts+1)]; /* the positions of the left brackets */} {}
decl {int currentbrkt; /* bracketing we are in */} {}
decl {double mem; /* The memory value */} {}
decl {int ready; /* Whether last number is ready.
if "ready" is set, then typing another number
overwrites the current number. */} {}
decl {int dot; /* Whether the dot has been typed */} {}
decl {double diver; /* The divider when behind the dot */} {}
decl {int behind; /* Number of digits behind dot */} {}
decl {int inv; /* Whether inverse key is depressed */} {}
decl {int emode; /* Whether we are entering the exponent */} {}
decl {int exponent; /* the exponent value whilst entering exponent */} {}
decl {double mantissa; /* the mantissa value whilst entering exponent */} {}
decl {int base; /* the base we are working in (2,8,10 or 16) */} {}
decl {int drgmode; /* whether we are in deg, rad or grad mode */} {}
}
Function {SciCalc()} {open
} {
Fl_Window win {
label flCalc open
private xywh {528 286 181 262} type Double visible
} {
Fl_Box leddisplay {
label {0 }
private xywh {5 3 172 24} box DOWN_BOX color 207 labelfont 1 labelsize 16 labelcolor 59 align 24
}
Fl_Box box_DEGRAD {
label { }
private xywh {24 27 35 15} box ENGRAVED_BOX labelsize 9 align 16
}
Fl_Box box_bracket {
private xywh {59 27 65 15} box ENGRAVED_BOX labelsize 9 align 16
}
Fl_Box box_M {
label M
private xywh {124 27 35 15} box ENGRAVED_BOX labelsize 9 align 16
}
Fl_Group {} {open
private xywh {46 44 93 22} color 46
} {
Fl_Button radio_2 {
label 2
callback {change_base(2);}
private xywh {49 48 20 15} type Radio labelsize 10 labelcolor 1
}
Fl_Button radio_8 {
label 8
callback {change_base(8);}
private xywh {70 48 21 15} type Radio labelsize 10 labelcolor 1
}
Fl_Button radio_10 {
label 10
callback {change_base(10);}
private xywh {92 48 21 15} type Radio value 1 labelsize 10 labelcolor 1
}
Fl_Button radio_16 {
label 16
callback {change_base(16);}
private xywh {114 48 21 15} type Radio labelsize 10 labelcolor 1
}
}
Fl_Group {} {open
private xywh {3 163 107 94} box FLAT_BOX color 43
} {
Fl_Button but_7 {
label 7
callback {handle_number(7);}
private xywh {6 167 32 20} shortcut 0x37 labelfont 1 labelsize 16
}
Fl_Button but_8 {
label 8
callback {handle_number(8);}
private xywh {41 167 32 20} shortcut 0x38 labelfont 1 labelsize 16
}
Fl_Button but_9 {
label 9
callback {handle_number(9);}
private xywh {75 167 32 20} shortcut 0x39 labelfont 1 labelsize 16
}
Fl_Button but_4 {
label 4
callback {handle_number(4);}
private xywh {6 189 32 20} shortcut 0x34 labelfont 1 labelsize 16
}
Fl_Button but_5 {
label 5
callback {handle_number(5);}
private xywh {41 189 32 20} shortcut 0x35 labelfont 1 labelsize 16
}
Fl_Button but_6 {
label 6
callback {handle_number(6);}
private xywh {75 189 32 20} shortcut 0x36 labelfont 1 labelsize 16
}
Fl_Button but_1 {
label 1
callback {handle_number(1);}
private xywh {6 211 32 20} shortcut 0x31 labelfont 1 labelsize 16
}
Fl_Button but_2 {
label 2
callback {handle_number(2);}
private xywh {41 211 32 20} shortcut 0x32 labelfont 1 labelsize 16
}
Fl_Button but_3 {
label 3
callback {handle_number(3);}
private xywh {75 211 32 20} shortcut 0x33 labelfont 1 labelsize 16
}
Fl_Button but_0 {
label 0
callback {handle_number(0);}
private xywh {6 233 32 20} shortcut 0x30 labelfont 1 labelsize 16
}
Fl_Button but_dot {
label {.}
callback {handle_number(DOT);}
private xywh {41 233 32 20} shortcut 0x2e labelfont 1 labelsize 16
}
Fl_Button but_sign {
label {+/-}
callback {if (! emode)
{
value[top] = -value[top];
set_display(value[top],NORM);
}
else
{
exponent = -exponent;
value[top] = mantissa*pow(10.0, (double)exponent);
set_display(mantissa,EXP);
}}
xywh {75 233 32 20} labelfont 1 labelsize 16
}
}
Fl_Button but_C {
label C
callback {init_value(top);
set_display(0.0,NORM);}
private xywh {112 167 31 20} labelfont 1 labelsize 16
}
Fl_Button but_AC {
label AC
callback {init_value(0);
set_display(0.0,NORM);
currentbrkt = 0;
box_bracket->label("");
box_bracket->redraw();}
private xywh {146 167 30 20} labelfont 1 labelsize 16
}
Fl_Button but_X {
label x
callback {handle_operator(MULT);}
private xywh {112 189 31 20} shortcut 0x2a labelfont 1 labelsize 16
}
Fl_Button but_div {
label {/}
callback {handle_operator(DIV);}
private xywh {146 189 30 20} shortcut 0x2f labelfont 1 labelsize 16
}
Fl_Button but_plus {
label {+}
callback {handle_operator(PLUS);}
private xywh {112 211 31 20} shortcut 0x2b labelfont 1 labelsize 16
}
Fl_Button but_minus {
label {-}
callback {handle_operator(MINUS);}
private xywh {146 211 30 20} shortcut 0x2d labelfont 1 labelsize 16
}
Fl_Button but_pi {
label {e/p}
callback {exponent_pi();}
private xywh {112 233 31 20} labelfont 12 labelsize 17
}
Fl_Button but_eval {
label {=}
callback {handle_operator(EVAL);}
private xywh {146 233 30 20} shortcut 0x3d labelfont 1 labelsize 16
}
Fl_Button but_eval_hidden {
callback {handle_operator(EVAL);}
private xywh {147 253 6 7} box NO_BOX shortcut 0xff0d labelfont 1 labelsize 16
}
Fl_Button but_eval_hidden2 {
callback {handle_operator(EVAL);}
private xywh {157 263 6 7} box NO_BOX shortcut 0xff8d labelfont 1 labelsize 16
}
Fl_Button but_sqrt {
label sqrt
callback {if (base > 10) handle_number(10.0);
else
if (! inv)
{
value[top] = sqrt(value[top]);
set_display(value[top],NORM);
ready = 1;
}
else
{
value[top] = pow(value[top], 2.0);
set_display(value[top],NORM);
ready = 1;
}}
private xywh {6 70 32 21} labelsize 11 labelcolor 4
}
Fl_Button but_pow {
label {x^y}
callback {if (base > 10)
handle_number(11.0);
else
handle_operator(check_inv->value()?INVPOW:POW);}
private xywh {41 70 32 21} labelsize 11 labelcolor 4
}
Fl_Button but_sin {
label sin
callback {if (base > 10) handle_number(12.0);
else
if (! inv)
{
value[top] = sin(to_drg(value[top]));
set_display(value[top],NORM);
ready = 1;
}
else
{
value[top] = from_drg(asin(value[top]));
set_display(value[top],NORM);
ready = 1;
}}
private xywh {76 70 31 21} labelsize 11 labelcolor 4
}
Fl_Button but_cos {
label cos
callback {if (base > 10) handle_number(13.0);
else
if (! inv)
{
value[top] = cos(to_drg(value[top]));
set_display(value[top],NORM);
ready = 1;
}
else
{
value[top] = from_drg(acos(value[top]));
set_display(value[top],NORM);
ready = 1;
}}
private xywh {110 70 31 21} labelsize 11 labelcolor 4
}
Fl_Button but_tan {
label tan
callback {if (base > 10) handle_number(14.0);
else
if (! inv)
{
value[top] = tan(to_drg(value[top]));
set_display(value[top],NORM);
ready = 1;
}
else
{
value[top] = from_drg(atan(value[top]));
set_display(value[top],NORM);
ready = 1;
}}
private xywh {144 70 30 21} labelsize 11 labelcolor 4
}
Fl_Button but_log {
label log
callback {if (base > 10) handle_number(15.0);
else
if (! inv)
{
value[top] = log10(value[top]);
set_display(value[top],NORM);
ready = 1;
}
else
{
value[top] = pow(10.0, value[top]);
set_display(value[top],NORM);
ready = 1;
}}
private xywh {6 93 32 21} labelsize 11 labelcolor 4
}
Fl_Button but_ln {
label ln
callback {if (! inv)
{
value[top] = log(value[top]);
set_display(value[top],NORM);
ready = 1;
}
else
{
value[top] = exp(value[top]);
set_display(value[top],NORM);
ready = 1;
}}
private xywh {41 93 32 21} labelsize 11 labelcolor 4
}
Fl_Button but_int {
label int
callback {if (! inv)
{
value[top] = truncf(value[top]);
set_display(value[top],NORM);
ready = 1;
}
else
{
value[top] = value[top] - truncf(value[top]);
set_display(value[top],NORM);
ready = 1;
}}
private xywh {76 93 31 21} labelsize 11 labelcolor 4
}
Fl_Button but_dr {
label {d->r}
callback {if (! inv)
{
value[top] = M_PI*value[top]/180.0;
set_display(value[top],NORM);
ready = 1;
}
else
{
value[top] = 180.0*value[top]/M_PI;
set_display(value[top],NORM);
ready = 1;
}}
private xywh {110 93 31 21} labelsize 10 labelcolor 4
}
Fl_Button but_drg {
label {d-r-g}
callback {drgmode++;
drgmode %= 3;
set_drgdisp();}
private xywh {144 93 30 21} labelsize 9
}
Fl_Button but_leftbr {
label {[}
callback {add_left_bracket();}
private xywh {6 116 32 21} shortcut 0x28 labelsize 11
}
Fl_Button but_rightbr {
label {]}
callback {add_right_bracket();}
private xywh {41 116 32 21} shortcut 0x29 labelsize 11
}
Fl_Button but_exch {
label exch
callback {exchange();}
private xywh {76 116 31 21} labelsize 11
}
Fl_Button but_invx {
label {1/x}
callback {value[top] = 1.0/value[top];
set_display(value[top],NORM);
ready = 1;}
private xywh {110 116 31 21} labelsize 11
}
Fl_Button but_fact {
label {x!}
callback {factorial();}
private xywh {144 116 30 21} labelsize 11
}
Fl_Button but_Mplus {
label {M+}
callback {if (! inv) mem += value[top]; else mem -= value[top];
set_display(value[top],NORM);
ready = 1;
set_memdisp();}
private xywh {6 139 32 21} color 93 labelcolor 4
}
Fl_Button but_Mmult {
label {M*}
callback {if (! inv) mem *= value[top]; else mem /= value[top];
set_display(value[top],NORM);
ready = 1;
set_memdisp();}
private xywh {41 139 32 21} color 93 labelcolor 4
}
Fl_Button but_Mclear {
label MC
callback {if (! inv)
{
mem = 0.0;
set_display(value[top],NORM);
ready = 1;
set_memdisp();
}
else
memexch();}
private xywh {76 139 31 21} color 93 labelcolor 4
}
Fl_Button but_Mst {
label Mst
callback {mem = value[top];
set_display(value[top],NORM);
ready = 1;
set_memdisp();}
private xywh {110 139 31 21} color 93
}
Fl_Button but_Mrc {
label Mrc
callback {value[top] = mem;
set_display(value[top],NORM);
ready = 1;}
private xywh {144 139 30 21} color 93
}
Fl_Button check_inv {
label inv
callback {if (inv)
{
inv = 0;
setnormlabels();
}
else
{
inv = 1;
setinvlabels();
}}
private xywh {6 44 32 21} type Toggle labelsize 11 labelcolor 4
}
Fl_Button but_quit {
label Exit
callback {win->hide();
delete win;}
private xywh {145 44 29 21} labelfont 1 labelcolor 33
}
}
code {init_value(0);
drgmode = 1;
base = 10;
currentbrkt = 0;
startbrkt[0] = 0;
set_memdisp();
set_brktdisp();
radio_10->value(1);
set_drgdisp();
set_display(0.0,NONE);} {}
}
Function {~SciCalc()} {} {}
Function {run(int px=-1,int py=-1)} {open
} {
code {win->show();
Fl::run();} {}
}
Function {handle_number(double numb)} {private
} {
code {int first;
double sign;
if (ready) init_value(top);
if (numb == -1.0)
if (dot) /* check whether we already have a dot */
return;
else
{
dot = 1;
set_display(value[top],DOT);
return;
}
if (emode)
{
sign = copysign(1.0, (double)exponent);
if (abs(exponent)*10 + numb > 999)
{ /* cycle if exponent has > 3 digits */
first = (int)floor((double)abs(exponent)/100.0);
exponent = abs(exponent) - 100*first;
exponent *= (int)sign;
}
exponent = exponent*10 + (int) (sign*numb);
value[top] = mantissa*pow(10.0, (double)exponent);
set_display(mantissa, EXP);
}
else if (numb < base)
{ /* both decimal and non decimal number entry */
sign = copysign(1.0, value[top]);
if (dot && behind < 9)
{
behind++;
diver = diver/(double)base;
value[top] += sign*diver*numb;
}
else
if ((! dot) && (value[top] < 1.0e10))
value[top] = (double)base*value[top] + sign*numb;
set_display(value[top],(mode)behind);
}} {}
}
Function {handle_operator(Operator op)} {private
} {
code {int prevop, i, finished;
switch (op)
{
case PLUS:
case MINUS:
case MULT:
case DIV:
case POW:
case INVPOW:
finished = 0;
do
{
if (top == startbrkt[currentbrkt]) finished = 1; /* is 1st operator */
if (! finished)
{ /* compare priority of previous operators with current op */
prevop = oper[top-1];
if (priority[prevop] < priority[op])
finished = 1;
else
{ /* last op can be calculated */
top--;
calc(top);
}
}
} while (! finished);
oper[top] = op;
init_value(top+1);
set_display(value[top-1],NORM);
break;
case EVAL:
while (currentbrkt > 0) add_right_bracket();
for (i = top; i > 0; i--) calc(i-1);
top = 0;
ready = 1;
set_display(value[top],NORM);
break;
}} {}
}
Function {change_base(int newbase)} {open private
} {
code {int oldbase;
oldbase = base;
base = newbase;
set_display(value[top], NORM);
ready = 1;
if ((oldbase == 16) || (base == 16)) setnormlabels();} {}
}
Function {set_display(double val,mode behind)} {open private
} {
code {int i;
char dispstr[40], expstr[10], str2[10];
/* number or operator handled to get here so reset inv stuff */
/*
if (inv)
{
inv = 0;
check_inv->value(0);
setnormlabels();
}*/
if (behind >= 0)
{ /* format with appropriate number of decimal places */
if (base == 10)
{
emode = 0;
strcpy(str2,"%.1f");
str2[2] = behind + '0';
sprintf(dispstr,str2,val);
}
else /* non base 10 display */
cvttobase(val, base, behind, dispstr);
}
else
if (behind == DOT)
{ /* display the . at the right */
if (base == 10)
{
emode = 0;
sprintf(dispstr,"%.1f",val);
dispstr[strlen(dispstr)-1] = 0;
}
else
cvttobase(val, base, behind, dispstr);
}
else if (behind == NORM)
{ /* normal display */
if (base == 10)
{
emode = 0;
sprintf(dispstr,"%.9g",val);
}
else /* non base 10 display */
cvttobase(val, base, behind, dispstr);
}
else
{ /* exponent entering display */
sprintf(dispstr,"%.8f",val);
for (i = strlen(dispstr); dispstr[i-1] == '0'; i--);
dispstr[i] =0;
strcat(dispstr, "e");
sprintf(expstr,"%d",exponent);
strcat(dispstr, expstr);
}
strcat(dispstr," ");
dispstr[17] = 0;
leddisplay->copy_label(dispstr);
leddisplay->redraw();} {}
}
Function {set_memdisp()} {open private
} {
code {if (mem)
box_M->label("M");
else
box_M->label("");
box_M->redraw();} {}
}
Function {set_drgdisp()} {open private
} {
code {if (drgmode == 0)
box_DEGRAD->label("DEG");
else
{
if (drgmode == 1)
box_DEGRAD->label("RAD");
else
box_DEGRAD->label("GRAD");
}
box_DEGRAD->redraw();} {}
}
Function {set_brktdisp()} {open private
} {
code {char dispstr[40];
if (currentbrkt > 0)
{
sprintf(dispstr, "%d [ max %d", currentbrkt, MaxNumBrkts);
box_bracket->copy_label(dispstr);
}
else
box_bracket->label("");
box_bracket->redraw();} {}
}
Function {add_left_bracket()} {private
} {
code {if (currentbrkt < MaxNumBrkts)
{
currentbrkt++;
startbrkt[currentbrkt] = top;
ready = 1;
set_brktdisp();
}} {}
}
Function {add_right_bracket()} {private
} {
code {int i;
if (currentbrkt > 0)
{
for (i = top; i > startbrkt[currentbrkt]; i--) calc(i-1);
top = startbrkt[currentbrkt];
currentbrkt--;
ready = 1;
}
set_display(value[top],NORM);
set_brktdisp();} {}
}
Function {factorial()} {open
} {
code {double lg, alpha;
/* uses gamma functions to get result for non-integer values */
alpha = value[top] + 1.0;
if ((floor(alpha) == alpha)&&(alpha <= 0.0))
{
init_value(0);
leddisplay->label("Error: -ve integer ");
leddisplay->redraw();
}
else
if (alpha > 32)
{
lg = exp(gammaln(alpha));
value[top] = lg;
set_display(value[top],NORM);
ready = 1;
}
else
if (alpha > 1.0)
{
int n = (int)truncf(alpha);
lg = 1.0;
for (int i = 1; i <n; i++) lg *= i;
value[top] = lg;
set_display(value[top],NORM);
ready = 1;
}} {}
}
Function {exchange()} {} {
code {double temp;
/* check if we have 2 values to exchange */
if (top > startbrkt[currentbrkt]) {
temp = value[top];
value[top] = value[top-1];
value[top-1] = temp;
set_display(value[top],NORM);
ready = 1;
}} {}
}
Function {exponent_pi()} {} {
code {if ((value[top] == 0.0) || (ready)) {
value[top] = M_PI;
set_display(value[top],NORM);
ready = 1;
}
else if ((! emode) && (base == 10)) {
emode = 1;
exponent = 0;
mantissa = value[top];
set_display(mantissa,EXP);
}} {}
}
Function {calc(int i)} {} {
code {switch (oper[i])
{
case PLUS: value[i] += value[i+1]; break;
case MINUS: value[i] -= value[i+1]; break;
case MULT: value[i] *= value[i+1]; break;
case DIV: value[i] /= value[i+1]; break;
case POW: value[i] = pow(value[i], value[i+1]); break;
case INVPOW: value[i] = pow(value[i], 1.0/value[i+1]); break;
}} {}
}
Function {init_value(int lev)} {open private
} {
code {top = lev;
value[top] = 0.0;
ready = 0;
emode = 0;
dot = 0;
diver = 1.0;
behind = 0;
if (inv)
{
inv = 0;
check_inv->value(0);
setnormlabels();
}} {}
}
Function {cvttobase(double num,int base,mode behind,char *str)} {private
} {
code {double sign, div;
int place, digit, i;
char digstr[2];
sign = copysign(1.0, num);
num *= sign;
if (sign == -1.0)
sprintf(str, "-");
else
str[0] = 0;
if (num == 0.0)
{
sprintf(str, "0");
if (behind > 0)
{
strcat(str, ".");
for(i = 0; i < behind; i++) strcat(str, "0");
}
return;
}
place = (int)( log(num)/log((double)base) );
if (place < 0) place = 0;
do
{
div = pow((double)base, (double)place);
digit = (int)(num/div);
num -= (double)digit*div;
if (place == -1) strcat(str, ".");
place--;
sprintf(digstr, "%x", digit);
strcat(str, digstr);
if (strlen(str) > 18)
{
sprintf(str, "can't display");
return;
}
} while ((place >= 0) || ((place >= -9) && (num != 0.0)));
if ((place == -1) && ((behind == DOT) || (behind > 0)))
strcat(str, ".");
while ((behind > 0) && (behind >= -place))
{
strcat(str, "0");
place--;
}} {}
}
Function {setnormlabels()} {open private
} {
code {if (base <= 10)
{
but_sqrt->label("sqrt"); but_sqrt->shortcut(0);
but_pow->label("x^y"); but_pow->shortcut(0);
but_sin->label("sin"); but_sin->shortcut(0);
but_cos->label("cos"); but_cos->shortcut(0);
but_tan->label("tan"); but_tan->shortcut(0);
but_log->label("log"); but_log->shortcut(0);
but_sqrt->labelcolor(FL_BLUE);
but_pow->labelcolor(FL_BLUE);
but_sin->labelcolor(FL_BLUE);
but_cos->labelcolor(FL_BLUE);
but_tan->labelcolor(FL_BLUE);
but_log->labelcolor(FL_BLUE);
}
else
{
but_sqrt->label("a"); but_sqrt->shortcut('a');
but_pow->label("b"); but_pow->shortcut('b');
but_sin->label("c"); but_sin->shortcut('c');
but_cos->label("d"); but_cos->shortcut('d');
but_tan->label("e"); but_tan->shortcut('e');
but_log->label("f"); but_log->shortcut('f');
but_sqrt->labelcolor(FL_BLACK);
but_pow->labelcolor(FL_BLACK);
but_sin->labelcolor(FL_BLACK);
but_cos->labelcolor(FL_BLACK);
but_tan->labelcolor(FL_BLACK);
but_log->labelcolor(FL_BLACK);
}
but_ln->label("ln");
but_int->label("int");
but_dr->label("d->r");
but_Mplus->label("M+");
but_Mmult->label("M*");
but_Mclear->label("MC");
but_sqrt->redraw();
but_pow->redraw();
but_sin->redraw();
but_cos->redraw();
but_tan->redraw();
but_log->redraw();
but_ln->redraw();
but_int->redraw();
but_dr->redraw();
but_Mplus->redraw();
but_Mmult->redraw();
but_Mclear->redraw();} {}
}
Function {setinvlabels()} {private
} {
code {if (base <= 10)
{
but_sqrt->label("x^2");
but_pow->label("x^1/y");
but_sin->label("asin");
but_cos->label("acos");
but_tan->label("atan");
but_log->label("10^x");
but_sqrt->labelcolor(FL_BLUE);
but_pow->labelcolor(FL_BLUE);
but_sin->labelcolor(FL_BLUE);
but_cos->labelcolor(FL_BLUE);
but_tan->labelcolor(FL_BLUE);
but_log->labelcolor(FL_BLUE);
}
else
{
but_sqrt->label("a");
but_pow->label("b");
but_sin->label("c");
but_cos->label("d");
but_tan->label("e");
but_log->label("f");
but_sqrt->labelcolor(FL_BLACK);
but_pow->labelcolor(FL_BLACK);
but_sin->labelcolor(FL_BLACK);
but_cos->labelcolor(FL_BLACK);
but_tan->labelcolor(FL_BLACK);
but_log->labelcolor(FL_BLACK);
}
but_ln->label("e^x");
but_int->label("frac");
but_dr->label("r->d");
but_Mplus->label("M-");
but_Mmult->label("M/");
but_Mclear->label("Mex");
but_sqrt->redraw();
but_pow->redraw();
but_sin->redraw();
but_cos->redraw();
but_tan->redraw();
but_log->redraw();
but_ln->redraw();
but_int->redraw();
but_dr->redraw();
but_Mplus->redraw();
but_Mmult->redraw();
but_Mclear->redraw();} {}
}
Function {mem_exchange()} {private
} {
code {double temp;
temp = mem;
mem = value[top];
value[top] = temp;
set_display(value[top],NORM);
ready = 1;
set_memdisp();} {}
code {printf("Hello, World!\\n");} {}
}
Function {to_drg(double angle)} {private return_type double
} {
code {if (drgmode == 0)
return (M_PI*angle/180.0);
else
if (drgmode == 2)
return (M_PI*angle/100.0);
else
return (angle);} {}
}
Function {from_drg(double angle)} {private return_type double
} {
code {if (drgmode == 0)
return (180.0*angle/M_PI);
else
if (drgmode == 2)
return (100.0*angle/M_PI);
else
return (angle);} {}
}
Function {memexch()} {open
} {
code {double temp;
temp = mem;
mem = value[top];
value[top] = temp;
set_display(value[top],NORM);
ready = 1;
set_memdisp();} {}
}
}
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