1.0Mathematics Departmenthttps://blogs.glowscotland.org.uk/er/wwhdepartmentmathematicsMiss Farrellhttps://blogs.glowscotland.org.uk/er/wwhdepartmentmathematics/author/gw15farrellnicholaglow/rich600338<blockquote class="wp-embedded-content" data-secret="LdnepVFbkR"><a href="https://blogs.glowscotland.org.uk/er/wwhdepartmentmathematics/code-breaking-3/">code breaking 3</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://blogs.glowscotland.org.uk/er/wwhdepartmentmathematics/code-breaking-3/embed/#?secret=LdnepVFbkR" width="600" height="338" title="“code breaking 3” — Mathematics Department" data-secret="LdnepVFbkR" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> https://glow-prod-er.s3.eu-west-1.amazonaws.com/er/public/wwhdepartmentmathematics/uploads/sites/1970/2018/06/code-breaking-3-768x576.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEO3%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIBmonfl1GHwNrlx8ajTfLlurBe%2BpFWk%2FaAOtUG%2F3%2BTpiAiEAnB0Jt83iXvom2NlQy38DCfhrywe%2FIIbiyojOQcWQtO0qwgUItv%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwyNzM1NzAxOTU0MzMiDFLvGMQGTE1gx1vc3CqWBVVmK0Jt7%2FzvjqteDjju5zjMstf0ViwdMzLQPArAezCfHIAhjwOJWx1yN7G29h4wXpdjg273dlDx9WfTDAC1mr4uoDCdT13kMCqU9uoBlYykctb1LP7PSMB2OXf%2BD4DmhOjGfiTD14RfZ6u5u1twVPWph4gcf%2F%2BHyTEjFggS5LHiNkGXKyl0yuBHC9eLKXtAboQoG6%2BK56ctsNdzJq225sKqWGpANiq%2B1OrxJXDDhLNiRr4yNqmd7GJEdd2aaQclEG9F5n8APvqLFgbwo3dwNoZGvX8NMwCZKqvp0UlgMCEzDM13mfBcdqUPYQhSAKUULnaV7Cqtw%2FUkbEJlMqUfZ4vzUG2hZATJ0y7lhR52EU0PSHOT4w5nYKZK41t%2FyiSyJFM215vIcYDk8S%2FBhtiTx3ItvjtwSke5eltUztxKhBwSYf1kETM%2FoG%2FG39o3mdJIxe7XSV%2Fo6KycEL9ReZt%2B134tg9%2BxBFi4YcDcd6Al3qbTKs3V4Hr5i0VMISlQXGowOnKc0Gnf%2FdrE3Ax9cUwKg2js7LwkVi3zX4AIf6XbPu4mB2kxSnwtmRj0QvY%2Bh1UKdYMhUk0nVGyqJWf%2FZ3O6%2F7aFltDecpvmQLNpjJEO873c2KEM2OGfr1cSMp%2BIzFIJXlXoM1%2Bpl9r%2BTdtmGzjOec7%2FjHkBjiIA7rW5oMi49zKOrO%2FrAzASxAK4Ut%2F97zG5LeP2fiVDvmYEcV%2FXNtCKLbkpYXYT9Ydy0OSrsKqgWxnaWHIwooBqLRrn%2FqSkXUDE8LG00uDbajE5uIGKN4zX9hJWnRCUAWJSEyjr1ZPAMZkU%2F2xyb5TxOfGtkS2CX4rG92Xt20WIf82wRGrE91QGSWlMWCYluj1ezEWk2%2BCLK5xOm8MHX1rmMLerqtAGOrEBsHu9Bt%2BwuSgSMujg9aFvPfqbmAj1ioBXrXDG%2FA1IGyo8ZXODJbMxhn4VNA0rz2%2BcRrN7C90Uj375tBMLgqlWZ5BjBJIOP4un3P5roEvppnfOxFXD0YUOQAxwnTQCcvTw1fvF6ixqHkK8koaEnS0bGpa8sfR9dfhI2%2FKpFyYL8MQegJn2eYfxbDlEHcJzAHN4wHzkJficV9wjrhIe8LQr75DxY7wqyLBD2zLVVihfnBGW&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAT7MQN47U5PA4CMYI%2F20260518%2Feu-west-1%2Fs3%2Faws4_request&X-Amz-Date=20260518T052349Z&X-Amz-SignedHeaders=host&X-Amz-Expires=900&X-Amz-Signature=38d5dd855c3eb820a2244d9dc2e3a77a25f8ae687b02eb751896882918f36f3f600450