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- LETZ generates a data file of z values given an
- expression in terms of x and y.
-
- e.g. the following example does something like this:
-
- For y = 0 to 20 step 1
- For x = 0 to 30 step 1
- z[x,y] = x+sin(y^2)/pi+10.22
- next x
- next y
-
-
- ----------- Log of a typical LETZ session ------------------------------
- $ letz
- File to store data in ? jack
- Storing data in {jack.z} and commands in {jack.let}
- Enter xmin,xmax,xstep (on one line) [0,30,1] ?
- Enter ymin,ymax,ystep [0,30,1] ? 0,20,1
- For y = 0 to 20 step 1
- For x = 0 to 30 step 1
- Valid funtions: (trig functions use radians)
- abs(), atn(), cos(), exp(), fix(),
- int(), log(), log10(), rnd(), sgn(), sin(),
- sqr(), sqrt(), tan(), PI, (x^3 = x*x*x)
- e.g. 3*x^2+sin(y*180/pi)
- Enter equation:
- ? x+sin(y^2)/pi+10.22
- z = x+sin(y^2)/pi+10.22
-
- Y = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
-
- Use LETZ <jack.let to remake the same data file
- $
- $ ----------- End of Log ------------------------------
-
- The file JACK.Z now contains the required data.
-
- The file JACK.LET contains
-
- --------------JACK.LET-----------
- jack.z
- 0, 30, 1
- 0, 20, 1
- x+sin(y^2)/pi+10.22
- -------------------end of file----
-
- This can be edited and then used to regenerate the data
- using a different range or a different equation.
-
-