Configure new backend version

pysr/sr.py

@@ -41,13 +41,14 @@ already_ran = False
 sympy_mappings = {
     "div": lambda x, y: x / y,
     "mult": lambda x, y: x * y,
+    "sqrt": lambda x: sympy.sqrt(x),
     "sqrt_abs": lambda x: sympy.sqrt(abs(x)),
     "square": lambda x: x**2,
     "cube": lambda x: x**3,
     "plus": lambda x, y: x + y,
     "sub": lambda x, y: x - y,
     "neg": lambda x: -x,
-    "pow": lambda x, y: sympy.Function("unimplemented_pow")(x, y),
+    "pow": lambda x, y: x ** y,
     "pow_abs": lambda x, y: abs(x) ** y,
     "cos": sympy.cos,
     "sin": sympy.sin,
@@ -59,7 +60,7 @@ sympy_mappings = {
     "acos": sympy.acos,
     "asin": sympy.asin,
     "atan": sympy.atan,
-    "acosh": lambda x: sympy.acosh(abs(x) + 1),
+    "acosh": lambda x: sympy.acosh(x),
     "acosh_abs": lambda x: sympy.acosh(abs(x) + 1),
     "asinh": sympy.asinh,
     "atanh": lambda x: sympy.atanh(sympy.Mod(x + 1, 2) - 1),
@@ -68,6 +69,10 @@ sympy_mappings = {
     "mod": sympy.Mod,
     "erf": sympy.erf,
     "erfc": sympy.erfc,
+    "log": lambda x: sympy.log(x),
+    "log10": lambda x: sympy.log(x, 10),
+    "log2": lambda x: sympy.log(x, 2),
+    "log1p": lambda x: sympy.log(x + 1),
     "log_abs": lambda x: sympy.log(abs(x)),
     "log10_abs": lambda x: sympy.log(abs(x), 10),
     "log2_abs": lambda x: sympy.log(abs(x), 2),

pysr/version.py

@@ -1,2 +1,2 @@
-__version__ = "0.10.4-1"
-__symbolic_regression_jl_version__ = "0.10.1"
+__version__ = "0.11.0"
+__symbolic_regression_jl_version__ = "0.12.0"