We Bank on Coffee!

Support GNU C-Graph - Today

It's Coffee Time !

We bank on coffee to keep business wired. Make us a brew while we code for you!

Buy us coffee! The Convolution Theorem is the most significant theorem in signal processing. Hundreds of thousands of student and professional engineers now use C-Graph to learn about convolution, the convolution theorem, and to generate data for designing filters and other signal processing operations. You have the opportunity, today, to participate in the development of this novel tool.

Joining our coffee club is just a click away:

• Brew Now with your credit or debit card,
• Brew Again each month with your PayPal account, or
• Check in your brew at our bank.

Brew Now

Make it a onetime brew:   cup of coffee : $5.00 mug of coffee : $10.00 jug of coffee : $25.00- pot of coffee : $50.00 urn of coffee : $100.00 carafe of coffee : $250.00 sack of beans : $500.00 robot coffee maker : $1,000.00 USD

Brew Again

Make it a monthly brew:    cup of coffee : $5.00 - monthly mug of coffee : $10.00 - monthly jug of coffee : $25.00 - monthly pot of coffee : $50.00 - monthly urn of coffee : $100.00 - monthly carafe of coffee : $250.00 - monthly sack of beans : $500.00 - monthly robot coffee maker : $1,000.00 - monthly USD

Brew Check IN

Send checks and other banking transfers to:

• GNU C-Graph
• Account: 932209
• Bank Code: 61325
• SWIFT (BIC) Code: NOSCJMKN
• Bank: Bank of Nova Scotia JA LTD (ScotiaBank), 10 Constant Spring Road, Kingston 10, Jamaica
• Recipient Address: GNU C-Graph, 5 Roehampton Circle, Kingston 19, Jamaica