import math fn test_log_base() { assert math.log(math.e) == 1.0 } fn test_log2_base() { assert math.log2(2.0) == 1.0 } fn test_log10_base() { // Note: `assert math.log10(10.0) == 1.0` currently fails, when the pure V implementation is used with // `./v -exclude @vlib/math/*.c.v vlib/math/log_test.v` assert math.veryclose(math.log10(10.0), 1.0) } fn test_log1p_base() { assert math.log1p(math.e - 1) == 1.0 } fn test_log_b_base() { assert math.log_b(2.0) == 1.0 }