Contact the website operator.
Use the public email below once the operator enables it. The link opens your email application; the page does not submit a contact form or upload files. No email address, business location or institutional identity is guessed.
Email the site operator
noorfatimalinkedin1@gmail.com
Your email app handles sending. This site does not collect a contact-form submission.
Make a calculation issue reproducible.
Include the tool title, browser/device, exact non-private example input, chosen operation or settings, expected output and actual output. Say whether the issue happens after Reset. A notation example such as 1.25e-3 is more useful than a screenshot containing private records.
For significant figures, keep the zeros and decimal point exactly as entered. For metric prefixes, include both selected full prefix names and the unchanged unit. For arithmetic, explain whether you are comparing an exact fraction, terminating display or rounded repeating answer.
Accessibility and alternative formats.
Describe the page, control, action and barrier. Mention assistive technology only if useful and share only what is necessary. The operator should review reports and possible alternatives; no fixed response time is promised.
Privacy or content requests.
Use a general description rather than sending account numbers, student identifiers, passwords or private data sets. The calculators have no stored answer history to retrieve. Chosen downloads, emails and hosting logs are separate from tool calculations.
Not a tutoring or urgent service.
This route does not book lessons, provide grading, certify a calculation or supply professional scientific advice. For course questions use your teacher or textbook; for safety-critical scientific or engineering work obtain appropriate independent verification.