Small X-axis increments are not plotted correctly

[aWZHY0yQH81uOYvH]

Bug category

• [ ] bug - compilation error
• [ ] bug - compilation warning
• [ ] bug - runtime error
• [ ] bug - runtime warning
• [x] bug - logic error

Describe the bug Small x-axis increments are skipped/averaged together to create a stair-stepped plot. I assume there is an epsilon constant somewhere which should probably be set much smaller than 1e-5 (or made to be dynamic with the given x values).

Steps to Reproduce

vector<double> x = linspace(0, 1e-4, 1000);
plot(x, transform(x, [](double x) {return sin(2*M_PI*1e4*x);}));
show();

Output

If 1e-4 is replaced with 1 in the above code, the result is correct.

Platform

• [ ] cross-platform issue - linux
• [ ] cross-platform issue - windows
• [x] cross-platform issue - macos

Environment Details:

• OS: macOS
• OS Version: 13.5
• Compiler: clang
• Compiler version: 14.0.3