Simple math parser and calculator.
It parses an expression as a function of three variables x, y, z
and calculate its value in the interval from -2 to 2.
Supported operation:
+, -, *, /, abs, mod, square
You can pass the calculation mode as a command line argument. Supported 6 modes:
| Mode | Description |
|---|---|
-u |
Calculation in int (default) |
-i |
Calculation in int with overflow checking |
-i |
Calculation in byte |
-d |
Calculation in double |
-bi |
Calculation in BigInteger |
-p |
Calculation in group of Int modulo 1009 |
Build:
javac -cp src -d out src/Main.java
Run:
java -cp out Main examples/test.elf examples/out.asm
> java -cp out Main -d
Enter expression:
x*x + 1.3*y/z
x = -2 y = -2 z = -2 f(x, y, z) = 5.3
x = -2 y = -2 z = -1 f(x, y, z) = 6.6
x = -2 y = -2 z = 0 f(x, y, z) = -Infinity
x = -2 y = -2 z = 1 f(x, y, z) = 1.4
x = -2 y = -2 z = 2 f(x, y, z) = 2.7
x = -2 y = -1 z = -2 f(x, y, z) = 4.65
x = -2 y = -1 z = -1 f(x, y, z) = 5.3
x = -2 y = -1 z = 0 f(x, y, z) = -Infinity
x = -2 y = -1 z = 1 f(x, y, z) = 2.7
x = -2 y = -1 z = 2 f(x, y, z) = 3.35
x = -2 y = 0 z = -2 f(x, y, z) = 4.0
x = -2 y = 0 z = -1 f(x, y, z) = 4.0
x = -2 y = 0 z = 0 f(x, y, z) = NaN
x = -2 y = 0 z = 1 f(x, y, z) = 4.0
x = -2 y = 0 z = 2 f(x, y, z) = 4.0
x = -2 y = 1 z = -2 f(x, y, z) = 3.35
x = -2 y = 1 z = -1 f(x, y, z) = 2.7
x = -2 y = 1 z = 0 f(x, y, z) = Infinity
x = -2 y = 1 z = 1 f(x, y, z) = 5.3
x = -2 y = 1 z = 2 f(x, y, z) = 4.65
x = -2 y = 2 z = -2 f(x, y, z) = 2.7
x = -2 y = 2 z = -1 f(x, y, z) = 1.4
x = -2 y = 2 z = 0 f(x, y, z) = Infinity
x = -2 y = 2 z = 1 f(x, y, z) = 6.6
x = -2 y = 2 z = 2 f(x, y, z) = 5.3
x = -1 y = -2 z = -2 f(x, y, z) = 2.3
x = -1 y = -2 z = -1 f(x, y, z) = 3.6
x = -1 y = -2 z = 0 f(x, y, z) = -Infinity
x = -1 y = -2 z = 1 f(x, y, z) = -1.6
x = -1 y = -2 z = 2 f(x, y, z) = -0.30000000000000004
x = -1 y = -1 z = -2 f(x, y, z) = 1.65
x = -1 y = -1 z = -1 f(x, y, z) = 2.3
x = -1 y = -1 z = 0 f(x, y, z) = -Infinity
x = -1 y = -1 z = 1 f(x, y, z) = -0.30000000000000004
x = -1 y = -1 z = 2 f(x, y, z) = 0.35
x = -1 y = 0 z = -2 f(x, y, z) = 1.0
x = -1 y = 0 z = -1 f(x, y, z) = 1.0
x = -1 y = 0 z = 0 f(x, y, z) = NaN
x = -1 y = 0 z = 1 f(x, y, z) = 1.0
x = -1 y = 0 z = 2 f(x, y, z) = 1.0
x = -1 y = 1 z = -2 f(x, y, z) = 0.35
x = -1 y = 1 z = -1 f(x, y, z) = -0.30000000000000004
x = -1 y = 1 z = 0 f(x, y, z) = Infinity
x = -1 y = 1 z = 1 f(x, y, z) = 2.3
x = -1 y = 1 z = 2 f(x, y, z) = 1.65
x = -1 y = 2 z = -2 f(x, y, z) = -0.30000000000000004
x = -1 y = 2 z = -1 f(x, y, z) = -1.6
x = -1 y = 2 z = 0 f(x, y, z) = Infinity
x = -1 y = 2 z = 1 f(x, y, z) = 3.6
x = -1 y = 2 z = 2 f(x, y, z) = 2.3
x = 0 y = -2 z = -2 f(x, y, z) = 1.3
x = 0 y = -2 z = -1 f(x, y, z) = 2.6
x = 0 y = -2 z = 0 f(x, y, z) = -Infinity
x = 0 y = -2 z = 1 f(x, y, z) = -2.6
x = 0 y = -2 z = 2 f(x, y, z) = -1.3
x = 0 y = -1 z = -2 f(x, y, z) = 0.65
x = 0 y = -1 z = -1 f(x, y, z) = 1.3
x = 0 y = -1 z = 0 f(x, y, z) = -Infinity
x = 0 y = -1 z = 1 f(x, y, z) = -1.3
x = 0 y = -1 z = 2 f(x, y, z) = -0.65
x = 0 y = 0 z = -2 f(x, y, z) = 0.0
x = 0 y = 0 z = -1 f(x, y, z) = 0.0
x = 0 y = 0 z = 0 f(x, y, z) = NaN
x = 0 y = 0 z = 1 f(x, y, z) = 0.0
x = 0 y = 0 z = 2 f(x, y, z) = 0.0
x = 0 y = 1 z = -2 f(x, y, z) = -0.65
x = 0 y = 1 z = -1 f(x, y, z) = -1.3
x = 0 y = 1 z = 0 f(x, y, z) = Infinity
x = 0 y = 1 z = 1 f(x, y, z) = 1.3
x = 0 y = 1 z = 2 f(x, y, z) = 0.65
x = 0 y = 2 z = -2 f(x, y, z) = -1.3
x = 0 y = 2 z = -1 f(x, y, z) = -2.6
x = 0 y = 2 z = 0 f(x, y, z) = Infinity
x = 0 y = 2 z = 1 f(x, y, z) = 2.6
x = 0 y = 2 z = 2 f(x, y, z) = 1.3
x = 1 y = -2 z = -2 f(x, y, z) = 2.3
x = 1 y = -2 z = -1 f(x, y, z) = 3.6
x = 1 y = -2 z = 0 f(x, y, z) = -Infinity
x = 1 y = -2 z = 1 f(x, y, z) = -1.6
x = 1 y = -2 z = 2 f(x, y, z) = -0.30000000000000004
x = 1 y = -1 z = -2 f(x, y, z) = 1.65
x = 1 y = -1 z = -1 f(x, y, z) = 2.3
x = 1 y = -1 z = 0 f(x, y, z) = -Infinity
x = 1 y = -1 z = 1 f(x, y, z) = -0.30000000000000004
x = 1 y = -1 z = 2 f(x, y, z) = 0.35
x = 1 y = 0 z = -2 f(x, y, z) = 1.0
x = 1 y = 0 z = -1 f(x, y, z) = 1.0
x = 1 y = 0 z = 0 f(x, y, z) = NaN
x = 1 y = 0 z = 1 f(x, y, z) = 1.0
x = 1 y = 0 z = 2 f(x, y, z) = 1.0
x = 1 y = 1 z = -2 f(x, y, z) = 0.35
x = 1 y = 1 z = -1 f(x, y, z) = -0.30000000000000004
x = 1 y = 1 z = 0 f(x, y, z) = Infinity
x = 1 y = 1 z = 1 f(x, y, z) = 2.3
x = 1 y = 1 z = 2 f(x, y, z) = 1.65
x = 1 y = 2 z = -2 f(x, y, z) = -0.30000000000000004
x = 1 y = 2 z = -1 f(x, y, z) = -1.6
x = 1 y = 2 z = 0 f(x, y, z) = Infinity
x = 1 y = 2 z = 1 f(x, y, z) = 3.6
x = 1 y = 2 z = 2 f(x, y, z) = 2.3
x = 2 y = -2 z = -2 f(x, y, z) = 5.3
x = 2 y = -2 z = -1 f(x, y, z) = 6.6
x = 2 y = -2 z = 0 f(x, y, z) = -Infinity
x = 2 y = -2 z = 1 f(x, y, z) = 1.4
x = 2 y = -2 z = 2 f(x, y, z) = 2.7
x = 2 y = -1 z = -2 f(x, y, z) = 4.65
x = 2 y = -1 z = -1 f(x, y, z) = 5.3
x = 2 y = -1 z = 0 f(x, y, z) = -Infinity
x = 2 y = -1 z = 1 f(x, y, z) = 2.7
x = 2 y = -1 z = 2 f(x, y, z) = 3.35
x = 2 y = 0 z = -2 f(x, y, z) = 4.0
x = 2 y = 0 z = -1 f(x, y, z) = 4.0
x = 2 y = 0 z = 0 f(x, y, z) = NaN
x = 2 y = 0 z = 1 f(x, y, z) = 4.0
x = 2 y = 0 z = 2 f(x, y, z) = 4.0
x = 2 y = 1 z = -2 f(x, y, z) = 3.35
x = 2 y = 1 z = -1 f(x, y, z) = 2.7
x = 2 y = 1 z = 0 f(x, y, z) = Infinity
x = 2 y = 1 z = 1 f(x, y, z) = 5.3
x = 2 y = 1 z = 2 f(x, y, z) = 4.65
x = 2 y = 2 z = -2 f(x, y, z) = 2.7
x = 2 y = 2 z = -1 f(x, y, z) = 1.4
x = 2 y = 2 z = 0 f(x, y, z) = Infinity
x = 2 y = 2 z = 1 f(x, y, z) = 6.6
x = 2 y = 2 z = 2 f(x, y, z) = 5.3