Output of file : MATHPLOT.FUN contained in archive : MATHPL32.ZIP
DISPLAY MATHPLOT example functions.
DISPLAY Press Enter when you are finished looking at each plot.
LIST ON

RESET
TITLE Damped oscillations
Y = EXP(-.2*X)*COS(X)
DOMAIN 0,6*PI
LABEL OFF
PLOT 30

RESET
TITLE Second and third order Butterworth filters
Y1=1/SQRT(1+(X/2000)^4)
Y2=1/SQRT(1+(X/2000)^6)
DOMAIN 0,8000
NUMPOINTS 100
LABEL ON
GRID ON
PLOT 30

RESET
Title Air Pressure (PSI) at Altitude (ft/1000)
y=14.7*exp(-.038508*x)
LABEL ON
GRID ON
DOMAIN 0,50
PLOT

RESET
TITLE Boiling point of water vs. pressure
CTITLE 7
y = -3227 / LOG(X/1698) - 459.7
CF1 2
DOMAIN 2,15
NUMPOINTS 100
LABEL ON
CAXES 3
AXES ON
CAXES 3
GRID ON
CGRID 8
COMMONSCALE OFF
ORIGIN OFF
PLOT

RESET
TITLE Fourth order Chebyshev low-pass filter
CTITLE 7
y=1/SQRT(1+P0^2*T(P1,X/P3)^2)
CF1 2
DOMAIN 0,4000
NUMPOINTS 100
P0 0.5
P1 4
P3 2000
LABEL ON
CAXES 3
GRID ON
CGRID 8
PLOT 30

RESET
TITLE Fourier series approximation of square wave
Y1 = SIN(X) + SIN(3*X)/3 + SIN(5*X)/5 + SIN(7*X)/7

Y2 = PULSE(0,X,PI) - PULSE(PI,X,2*PI)
DOMAIN .001,2*PI+.001
NUM 200
LABELS ON
GRID ON
PLOT 30

RESET
TITLE Cubic equation: Y = 2*X^3 + 50*X^2 + 100*X + 5000
CTITLE 7
Y=2*X^3+50*X^2+100*X+5000
DOMAIN -30,18
NUMPOINTS 100
LABEL ON
GRID ON
PLOT 30

RESET
TITLE Hyperbolic function: X * Y = 5
Y1=5/T
X1=T
CF1 2
Y2=-5/T
X2=-T
CF2 2
DOMAIN 0.5,10
LABEL OFF
COMMONSCALE ON
PLOT 30

RESET
TITLE Hypocycloid of four cusps (Astroid)
CTITLE 4
y=SIN(T)^3
x=COS(T)^3
CF1 2
DOMAIN 0,6.28319
NUMPOINTS 100
LABEL OFF
CAXES 1
COMMONSCALE ON
PLOT 30

RESET
TITLE Reciprocal of Gamma function
CTITLE 7
y=GAMMAI(X)
CF1 2
DOMAIN -4,6
NUMPOINTS 100
LABEL ON
CAXES 3
GRID ON
CGRID 8
COMMONSCALE OFF
ORIGIN OFF
PLOT 30

RESET
TITLE Normal probability distribution function
Y=NORMAL(X)
DOMAIN -4,4
NUMPOINTS 150
LABEL OFF
PLOT 30

RESET
Display Now for some "artistic" plots.
R=2*SIN(2*A)
CF1 3
DOMAIN 0,2000
NUMPOINTS 500
LABEL OFF
AXES OFF
PLOT 30

RESET
y=SIN(T)^3
x=COS(T)^3
CF1 2
DOMAIN 0,4000
NUMPOINTS 500
LABEL OFF
AXES OFF
GRID OFF
COMMONSCALE ON
PLOT 30

RESET
y=5*SIN(T)-SIN(5*T)
x=5*COS(T)-COS(5*T)
CF1 3
DOMAIN 0,6000
NUMPOINTS 400
LABEL OFF
AXES OFF
COMMONSCALE ON
PLOT 30

DISPLAY Type or edit MATHPLOT.FUN to see the function descriptions.
DISPLAY The file MATHPLOT.DOC contains a tutorial and full instructions.
EXIT

### 3 Responses to “Category : Science and EducationArchive   : MATHPL32.ZIPFilename : MATHPLOT.FUN”

1. Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

2. This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

3. But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/