Tools

Calculator

Converter

Tools

To add, substract, multiply, divide, calculate square roots and percentages, press , and select Tools > Calculator.

Note: This calculator has limited accuracy and is designed for simple calculations.

To save a number in the memory (indicated by M), select Options > Memory > Save. To retrieve a number in memory, select Options > Memory > Recall. To clear a number in memory, select Options > Memory > Clear.

Calculate percentages

1Enter a number for which you want to calculate a percentage.

2Select , , , or .

3Enter the percentage.

4Select .

To convert measures such as Length from one unit (Yards)

to another (Metres), press , and select Tools > Converter.

Note that Converter has limited accuracy, and rounding errors may occur.

1Scroll to the Type field, and press the joystick to open a list of measures. Scroll to the measure you want to use, and select OK.

2Scroll to the first Unit field, and press the joystick. Select the unit from which you want to convert and OK. Scroll to the next Unit field, and select the unit to which you want to convert.

3Scroll to the first Amount field, and enter the value you want to convert. The other Amount field changes automatically to show the converted value.

Press to add a decimal and for the +, - (for temperature), and E (exponent) symbols.

Tip! To change the conversion order, enter the value in the second Amount field. The result is shown in the first Amount field.

Copyright © 2005 Nokia. All rights reserved.

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Nokia N91 manual Tools, Calculator, Calculate percentages
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N91 specifications

The Nokia N91, launched in 2005, marked a significant milestone in the evolution of mobile phones, particularly as a music-centric device. Positioned as a multimedia smartphone, the N91 was tailored for music enthusiasts and boasted an array of features that set it apart from its contemporaries.

One of the standout characteristics of the Nokia N91 was its impressive storage capacity. It came equipped with an internal hard drive, offering 4GB of storage—an astounding amount for its time. This allowed users to store a substantial library of songs, making it one of the first phones to integrate such extensive media storage into its design.

The N91 featured a robust media player capable of handling various audio formats, including MP3, AAC, and MPEG-4. The user interface was designed to facilitate easy navigation through song libraries and playlists, catering to users who desired quick access to their favorite tracks. It also supported playlists and allowed for easy synchronization with a PC, enhancing the user experience.

In terms of connectivity, the Nokia N91 supported Wi-Fi and 3G networks, providing fast data access for downloading music and streaming content. The inclusion of Bluetooth technology was another highlight, allowing users to connect wireless headphones or speakers with ease. These features made the N91 not just a phone but a fully-fledged portable media player.

The device featured a striking design, with a metallic finish and a sleek form factor that appealed to style-conscious consumers. The 2.4-inch TFT display was optimal for viewing album art and managing playlists. Additionally, the N91 included a dedicated music control interface with physical buttons, making it convenient for users to control playback without having to navigate through menus.

On the photography front, the Nokia N91 had a 2-megapixel camera, a respectable feature for the time, allowing users to capture memories alongside their music experiences.

With its robust battery life and features tailored for music consumption, the Nokia N91 paved the way for future smartphones, blending phone capabilities with a rich multimedia experience. It remains a notable device in Nokia's legacy, representing an era where mobile phones began to transition into multifunctional gadgets that catered to a range of user needs beyond communication.
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