Math test

Protected

Calculate:

arcsin(−1/2)

1−π/6 + πk

25π/6

3π/3

4π/6

5−π/6

ChiMate.ai

1. Arcsine

−π/6

Use the oddness of arcsine and the identity sin(π/6) = 1/2.

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The app takes a screenshot, a neural network extracts text and images, then provides an answer with a solution.

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§ 01 HOW IT WORKS

1 click = 3 steps to the answer

Press a button or hotkey: ChiMate captures a screenshot, extracts task text with OCR, recognises related images and prepares an answer. Response time depends on the selected model.

Step 01

Screenshot capture

Take a screenshot of any window using a hotkey or by pressing the button on the special translucent control panel (the "Overlay"). No context switching and no loss of focus.

Step 02

Text and image recognition

ChiMate extracts the text of the task with OCR, preserving its structure. It also recognises related images, including drawings, diagrams and graphs, for further analysis.

Step 03

AI analysis

The model takes the task's text and images into account to produce a structured answer: an explanation, translation or solution.

§ 02 INTERFACE

One assistant. Four ways to work

Open the main window, keep an answer over your task, capture a long page or control ChiMate from another device. Choose a mode to see it in action. Learn more.

Chinese language test

How do you say “dad” in Chinese?

A:お父さん

B:아빠

C:爸爸

ChiMate.ai

1 / 26

Chinese languagetest3

1. Chinese language

3C: 爸爸

This is a Chinese word; the other options are Japanese and Korean.

Done

Everything at hand

Your task and answer side by side

Select the window with your task and take a screenshot. ChiMate shows the answer with an explanation — next to your work or on a second monitor.

Capture a window, region or screen
Choose the model and task type
Keep your answers in one history
For stealth operation, use other control methods: overlay, remote control, or keyboard shortcuts.

§ 03 CAPABILITIES

Support for many languages and work modes

Choose different languages and work modes, or leave it in automatic mode.

Multiple AI tiers are available — from fast and economical models to the most capable ones with the highest level of reasoning.

Area of responsibility — the whole world

Main modes:

Tests — tasks with multiple-choice answers
Translation — foreign-language tasks that need to be translated into your native language
Code — analysing or writing source code

§ 04 MODEL TIERS

Three AI model tiers to choose from — from speed to maximum intelligence

Match the tier to your task, from quick everyday answers to deep analysis with web search.

Need precise facts and up-to-date information? Choose Advanced or Top: they search the web. This is especially useful for traffic rules, law, medicine and other specialist questions.

Tier

Simple

No web search

Quick everyday tasks without web search.

Price: 1 credit / request
Intelligence
Speed: Fast

Best for

Math, logic and homework
Russian, English and other languages
Aptitude tests, basic code and live coding

When to choose another tier

For traffic rules, law, medicine and questions needing current facts, choose Advanced or Top with web search.

Tier

Advanced

Web search

Complex analysis and fact-checking on the web.

Price: 2 credits / request
Intelligence
Speed: Average

Best for

Traffic rules, history and literature
Medicine, law and specialist tests
Complex live coding and tasks requiring fact-checking

When to choose another tier

For the hardest problems or several tasks in one request, choose Top for deeper analysis.

Tier

Top

Web search

Maximum intelligence and extensive web search.

Price: 3 credits / request
Intelligence
Speed: Slow

Best for

The hardest problems requiring deep analysis
Several tasks in a single request
Specialist questions needing extensive web research

When to choose another tier

Routine translations and simple tests are faster and cheaper with Simple. Choose Top when depth matters more.

For all tiers: if an answer depends on private manuals or internal documents, include the relevant information in your request. Web search cannot access them.

§ 05 SOLUTION EXAMPLES

See how ChiMate solves tasks

From school tests to code and problems with graphs. Choose a topic and watch an on-screen question become an answer with an explanation.

Mathematics

Polynomial inequality

Solve the inequality:

(x − 3)²(x + 4) ≤ 0

Use the ∪ symbol to indicate a union of intervals.

( )[ ]√xⁿπ∞<>≤≥∈∪

Answer ✓

ChiMate.ai

Solving the inequality

(−∞; −4] ∪ [3; 3]

The squared factor is non-negative. The sign of the product is determined by x + 4, and the product is zero at x = 3.

Computer Science

Exception handling in Python

What happens if the user enters abc?

try:
    number = int(input("Enter a number: "))
except ValueError:
    print("Invalid number")

The program will definitely crash
Invalid number will be printed
The variable number will contain the string "abc"
0 will be printed

ChiMate.ai

Handling ValueError

Invalid number will be printed

Converting the string to an integer raises ValueError, which is caught by the exception handler.

Coding

Code analysis: profile import

A school laboratory developed a service for storing user profiles. A profile can be exported as a string and then imported again. The developers chose Python’s built-in pickle module because it can serialize Python objects.

Work out how the application handles the supplied data and complete the statements.

Statement 1

When accessing /import, the user-supplied data is first retrieved from the HTTP request and then passed to the function...

decode_profile
encode_profile
get_user
create_user

Statement 2

In the decode_profile function, the first operation is…

Hashing with SHA-256
Base64 decoding

from flask import Flask, request, jsonify
import base64
import pickle
import sqlite3
import hashlib
import os
import json

app = Flask(__name__)

DB_PATH = "users.db"
PROFILE_DIR = "profiles"

def get_db():
    db = sqlite3.connect(DB_PATH)
    db.row_factory = sqlite3.Row
    return db

def hash_password(password):
    return hashlib.sha256(password.encode()).hexdigest()

def create_user(username, password):
    db = get_db()
    db.execute(
        "INSERT INTO users(username, password) VALUES (?, ?)",
        (username, hash_password(password)),
    )
    db.commit()
    db.close()

def get_user(username):
    db = get_db()
    row = db.execute(
        "SELECT username FROM users WHERE username = ?",
        (username,),
    ).fetchone()
    db.close()
    return dict(row) if row else None

def encode_profile(profile):
    raw = pickle.dumps(profile)
    return base64.b64encode(raw).decode()

def decode_profile(data):
    raw = base64.b64decode(data)
    return pickle.loads(raw)

ChiMate.ai

Import function

decode_profile

This function accepts profile data for decoding; encode_profile performs the inverse conversion.

First transformation

Base64 decoding

base64.b64decode(data) is executed first, then pickle.loads(raw).

Physics

Thermal phenomena: water evaporation

Water is poured into a wide, shallow cylindrical cup (schematic drawing).

Apparatus: a fan, an open cup of water suspended from a spring of stiffness k, a heater, a temperature sensor and a two-channel recorder.

A temperature sensor and an electric heater are immersed in water. The cup is suspended from a vertical spring, the elongation of which is measured by a sensor. Before the start of the experiment, the mechanical sensor was zeroed with an empty cup with a heater and temperature sensor installed in it, so its readings are determined only by the mass of the remaining water.

Graph of readings of two channels over time: curves I and II, marked points A, B, C, D, E.

At point A, a fan is turned on, creating a constant flow of dried air. The water begins to evaporate and cool. At point C, without changing the fan mode, connect a constant power heater. The experiment ends at point E, when the water has completely evaporated.

Assume that the water has a uniform temperature. Air temperature, humidity and speed remain constant during the experiment. Heat flows from the air to the water according to P_air = β(T_air − T), where β is constant. Evaporation is the only cause of water loss. The water does not boil. Ignore splashing, leaks, the heat capacity of the cup and equipment, and any other heat transfer.

The graph is an idealized model of the measurement results. Assume that the rate of evaporation is constant from A to C and takes on a different constant value from C to E. Neglect the effect of water temperature on the rate of evaporation within each of these sections.

A two-channel recorder recorded the water temperature and the additional extension of the spring relative to the position of the empty cup. The channel labels were lost, so only the designations “curve I” and “curve II” remained on the graph. The conventional indication of channel u is plotted vertically, and the number of divisions n is plotted horizontally. The time from the beginning of the experiment is determined by the formula t = qn. Consider all points marked with letters to be located exactly at the nodes of the coordinate grid.

The following quantities are known:

Air temperature: T_air = 30 °C.
Time scale: q = 0.8 min/div.
Temperature (in °C) as a function of the reading: T = 15.6 + 2.4u.
Spring extension (in cm) as a function of the reading: x = u · sₓ; sₓ = 0.08 cm/unit.
Spring stiffness: k = 30 N/m.
Specific heat capacity of water: c = 4200 J/(kg · °C).
Specific latent heat of vaporization: L = 2.26 MJ/kg.
Gravitational acceleration: g = 10 m/s².

Questions for the assignment

How many minutes after switching on the fan was the first steady state reached? Round your answer to one decimal place.
Determine the initial mass of water. Express your answer in grams, round to whole numbers.
Determine the rate of water evaporation before turning on the heater. Express your answer in g/min, round to the nearest hundredth.
Determine the heat transfer coefficient β. Express your answer in W/°C, round to the nearest tenth.
Determine the heater power. Express your answer in watts, round to the nearest tenth.

ChiMate.ai

First steady state

8 min

t = q · n = 0.8 min/div · 10 div = 8 min.

Initial mass of water

17 g

m = k · u₀ · sₓ / g = 30 · 7 · 0.0008 / 10 = 0.0168 kg = 16.8 g ≈ 17 g.

Evaporation rate

0.23 g/min

Δm = 7.2 g; Δt = 40 · 0.8 = 32 min; r = 7.2 / 32 = 0.225 g/min ≈ 0.23 g/min.

Heat transfer coefficient

0.7 W/°C

T₁ = 18 °C; P = r · L = 8.475 W; β = P / (T_air − T₁) = 8.475 / 12 ≈ 0.7 W/°C.

Heater power

9.0 W

r₂ = 9.6 g / 25.6 min; P_evap = 14.125 W; P_air = β · (30 − 22.8) = 5.085 W; P = 14.125 − 5.085 = 9.04 ≈ 9.0 W.

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§ 06 FAQ

Frequently asked questions

Answers to the most common questions. Can't find yours — drop us a line.

What are credits?

Credits are spent on each analysis request. The cost depends on the chosen model tier: Simple — 1 credit, Advanced — 2, Top — 3. Your plan determines how many credits you receive each period.

Which model tiers are available?

Three tiers are available — Simple, Advanced and Top. Higher tiers use more capable models and deliver up to 95% accuracy on complex tasks.

Will other apps or websites notice the overlay and screenshots?

The Windows app can exclude its overlay from compatible screen captures when capture protection is enabled. The browser assistant does not guarantee this: its window may appear when sharing an entire screen.

Which operating systems are supported?

The desktop app supports Windows 10/11 (x64). The browser assistant works in supported desktop browsers, including current Chrome and Edge. Screen capture and floating-window support depend on the browser.

What languages do OCR and analysis support?

OCR recognises virtually any language supported by the selected model. Analysis answers automatically adapt to the interface language or the source task language.

Does ChiMate recognise images in a task?

Yes. ChiMate extracts task text with OCR and recognises related drawings, diagrams and graphs. The model takes both text and images into account when preparing an answer. Capture the entire task and its related images.

How long does it take to get an answer?

It depends on the selected model tier, the complexity of the task and the number of questions in it. Approximate response times: Simple — 2–20 seconds, Advanced — 5–40 seconds, Top — up to 60 seconds.

What if the task is too long to fit on the screen?

For these cases, CDP mode can capture the entire page, including content beyond the visible area.

Can I get a refund if the app does not suit me?

You can request a refund if you have used no more than 30 credits. Requests are reviewed within 3 business days.

Download now and try it for free on your own tasks!

Download for Windows

10 15 free credits • No credit card requiredVersion: Loading…

No installation - download and run. No registration - sign in with Google.

An answer to your task right from your screen

1 click = 3 steps to the answer

Screenshot capture

Text and image recognition

AI analysis

One assistant. Four ways to work

Your task and answer side by side

Keep your answer in sight

Room for the whole problem

Web Session

Detected results

Task on your PC. Answer on your phone

Support for many languages and work modes

Three AI model tiers to choose from — from speed to maximum intelligence

Simple

Best for

When to choose another tier

Advanced

Best for

When to choose another tier

Top

Best for

When to choose another tier

See how ChiMate solves tasks

Polynomial inequality

(x − 3)²(x + 4) ≤ 0

Solving the inequality

Exception handling in Python

Handling ValueError

Code analysis: profile import

Statement 1

Statement 2

Import function

First transformation

Russian language test

1. Which row has an omitted unstressed root vowel that can be checked by stress in every word?

2. In which row must every gap be filled with the letters ЛЛ?

3. In which row must every gap be filled with the same letter?

Unstressed vowels in the root

Double consonants

The vowels Ы and И after prefixes

Reading: visiting someone's home

Choose the correct statements.

True statements

Ozonolysis of organic compounds

Matching compounds

Thermal phenomena: water evaporation

The following quantities are known:

Questions for the assignment

First steady state

Initial mass of water

Evaporation rate

Heat transfer coefficient

Heater power

Indirect taxes and changes in GDP

Change in GDP

Analysis of a chess position

Piece development

HIV infection is a serious disease that primarily damages the:

HIV infection

Which Agile communication method is most effective for determining the amount of work for a sprint and how that work will be done?

Planning work for a sprint

Frequently asked questions

What are credits?

Which model tiers are available?

Will other apps or websites notice the overlay and screenshots?

Which operating systems are supported?

What languages do OCR and analysis support?

Does ChiMate recognise images in a task?

How long does it take to get an answer?

What if the task is too long to fit on the screen?

Can I get a refund if the app does not suit me?

Download now and try it for free on your own tasks!